引文的格式可采用文中夹注、脚注和尾注的形式，MLA和APA格式中一般不采用脚注或尾注，而使用文中夹注的形式。本文小编为大家解析两者引文的区别。
1文中夹注（Parenthetical Citation）
注释要包括作者姓名、书名、出版地、出版社、出版时间及页码。引文较短时，要用双引号括起来，引文与正文融为一体。如果作者已在文中出现，注释中就不再列作者的名字；当引文较长时（四行或超过四行），引文要另起一段，缩进五个空格，不用引号；多个作者在第二次被提到时可用第一个作者的姓加et al；引文是翻译材料时要注明最初出版时间和翻译时间。MLA格式要求标明作者的姓和页数，它们之间没有逗号。APA格式要求括号里标明作者姓名、出版日期，引文的其他信息可在参考文献中找到。
2脚注(Footnotes)与尾注（Endnotes）的使用
脚注写在该页最后一行下面数四行的位置。如果该页有两个以上的脚注，脚注之间需要隔行。在正文中的引语（直接或间接）处的上方标上阿拉伯数字，脚注也标上相应的数字。脚注的字体必须与正文一样，可使用单倍行距，但相邻脚注之间应空15行。在MLA的规范里，脚注只应在下列两种情况中考虑使用:(1)提供有一定重要性、但写入正文将有损文本条理和逻辑的解释性信息;(2)提供因篇幅过大不宜使用括号夹注注明的文献出处信息。在APA的规范里脚注仅仅在上述第一种情况下可以使用。
尾注要另起一页，放在该章的最后一页，标上Notes,隔行打印。引语处的上方要标上阿拉伯数字，尾注也同样标出相应的数字。
例子：ENwezeh,“The Comparative Approach To Modern African Literature,”Yearbook of General and Comparative Literature,no28（1979）:22
3引用整篇文献观点
引用整篇文献观点时有两种情况：
①作者的姓氏在正文中没有出现：
MLA:Charlotte and Emily Bronte were polar opposites,not only in their personalities but in their sources of inspiration for writing(Taylor)
APA:Charlotte and Emily Bronte were polar opposites,not only in their personalities but in their sources of inspiration for writing(Taylor,1990)
②作者的姓氏在正文同一句中已经出现:
MLA：不需要使用括号夹注
APA：不需要在括号夹注中重复作者的姓，如姓氏和文献出版年份均已出现，则不需要使用夹注。
在英文撰写的论文中引用中文著作或者期刊，括号夹注中只需用汉语拼音标明作者的姓氏，不得使用汉字，如:MLA:(Zhu 12)APA:（Zhang,2005)
4引用文献中具体观点或文字
引用文献中某一引用文献中具体观点或文字具体观点或文字时必须注明该观点或者该段文字出现的页码，没有页码是文献引用不规范的表现。例如：
MLA:Monasteries in medieval Europe were not short of speculations about Greek inventions(Marcuse190-203)
APA：Newmark(1988,pp39-40)notes three characteristically expressive text-types:(a)seriousimaginative literature(eglyrical poetry);(b)authoritative statements(political speeches anddocuments,statutes and legal documents,philosophical and academic works by acknowledgedauthorities);(C)autobiography,essays,personal correspondence(when these are personaleffusions)
注意在这些例子中引文超过一页时的页码标记方法:MLA引文格式的规范是(Marcuse 190-203)，而APA的规范是(1988,pp39-40)。
MLA 是一种常用的引用格式，由于MLA 格式很严谨，在 文章 中即使是一小句也不可以随便不加任何注释的引用。下面我给大家分享一些mla英语论文引用格式要求，希望能对大家有所帮助。
mla英语论文引用格式要求
Rubric of the Course Paper for “American Literature”
关于“美国文学”课程论文MLA格式的细则
1 The thesis is written in English, including the citation( 全文用英文书写, 包括引用文献。)
2 What are some essential standard of a MLA paper (MLA 论文基本要求)Type your paper on a computer and print it out on standard, white 85 x 11-inch paper Set the margins of your thesis to one-inch(254 centimeters)on all sides The paper should be double-space typed There is one space between every English words There is no space between the words and punctuations (用12号新罗马字体排版，双倍行距。页边距为254厘米，16开A4白色纸打印，英文单词之间相距一个空格。单词和标点符号之间没有空格。)
3 How to Create a Header 如何编辑页眉Create a header in the upper right-hand corner that includes your family name, followed by a space with the page number; number all pages consecutively with Arabic numerals (1, 2, 3, 4) and flush with the right margin Omit the page number on Page One(编辑页眉，将你的姓和页码标注在右上角，姓和页码之间有一个空格，不用标点符号;上面边距是127厘米，右边与正文部分对齐。)
4 How to deal with the first page 第一页格式的处理。In the upper left-hand corner of the first page, list your name; your number and your class; the tutor’s name; the course; and the date The date in MLA format should be written as “day month year”: ie 29 December 2011(without comma between each word and the month should not be abbreviated) Be sure to use double space (第一页左上角，纵向排列你的名字;学号、班级;指导老师的名字;课程名称;日期(格式是日月年，中间不用标点符号，月份也不用缩写，如：29 December 2011)
5 How to write a title(如何写标题)The title is centered and written in 12-piont Times New Roman font The title is not bold, underlined, or italicized But use quotation mark or italic(s) if your title includes works (an article, a poem, or a story) or a book of others, do just as you would do in the text: quote the title of the article, the poem or the story while italicize the book (标题居中，用12号新罗马字体。标题不用黑体，下划线或斜体，如果标题中有已出版的文章，文章部分用双引号，如果是书籍，书籍部分用斜体。如：Sybolism in “Young Good Man Brown” 或Sybolism in Scarlet Letter。
6 How to write an outline 如何写提纲((You are not required to write an outline this time)注意：这次没有要求写提纲。)As for the outline of a MLA paper, there is a sample of outline on Page 38 of the fifth edition of MLA Handbook for Writers of Research Papers: A- level: I, II, III, B-level: A, B, C; C-level: 1, 2, 3; D-level:a, b, c, E-level: (1), (2), (3); F-level: (a), (b), (c) (MLA论文的题纲可以参考《MLA科研论文写作规范》第五版38页的提纲：A级：用大写罗马数字I, II, III等;B级：用大写英文字母A, B, C等;C级：用阿拉伯数字1、2、3 等;D级：用小写英文字母a，b, c 等; E级：用阿拉伯数字加括号如(1), (2), (3); F级：用小写英文字母加括号，如：(a), (b), (c))
7 (如何写副标题)As for the heading of the text, title the main sections(B-level) 用不同的字体将文章中B级标题和主标题区分开: 如标题左对齐, 词首字母用12号字体，其余用10号字体，大写锁定键键入，如：主标题是：Symbolism in “Young Good Man Brown”(居中)，B级标题是SYMBOLIC MEANING OF NATURE(左对齐)，然后用两倍行距分行，开始正文部分;C级标题大写词首字母，用斜体格式，不分行，直接开始正文部分。如: C级标题 Symblic Meaning of the Forest
8 How to indent the first paragraph (如何编辑段落)Indent the first sentence of each paragraph 05inch Microsoft Word suggests using the Tab ky (每一段第一句缩进半英寸(175厘米)，用Tab键。
9 How many parts are there basically in a thesis (论文最基本应该包括几部分)The thesis should have an introductory paragraph, body paragraphs for developing ideas and a paragraph for conclusion (论文应该包括一段引言部分、几段论证部分和一段结论部分。)
10 How to write the introduction Is it the introduction of the author or the introduction of the plot of the story (如何写论文的引言部分它是作者的生平介绍吗它是小说的 故事 情节介绍吗) No, The introduction is neither the introduction of the author nor that of the plot of the story you study It is an introduction of the paper you are writing It should set the context for the rest of the paper It tells your readers why you are writing and why your topic is important It ends with a thesis statement which is the position you will develop and support throughout the paper The thesis statement guides and controls your paper(引言部分既不是你所研究的文章的作者介绍，也不是作品的故事情节介绍，而是对你写的论文大致介绍。它为整篇文章定下基调，告知读者你的论文的必要性和重要性;引言部分用一个 句子 作为全文中心论点结束，中心论点是需要论证阐释的观点，指导和控制全文，使整篇文章不至于偏题。)
11 How to Make the Ideas of a Long Thesis Easier for the Reader to Grasp (如何使一篇篇幅较长的论文便于读者理解)If your thesis is a long one, you may want to write about how your paper is organized This can help your reader to follow your ideas(如果你的论文比较长，在引言之后接下来一段，你可以介绍你论文的结构，便于读者理解你的观点。)
12 What are the elements for the body paragraphs (正文段落的有哪些要素)Body paragraphs have these four elements: a transition, a topic sentence, evidence and a brief wrap-up sentence At the beginning of your developing paragraphs, make sure you have transitory words, phrases or paragraphs to have each part connected logically together You’d better begin each paragraph with a topic sentence and several other sentences of instances to support it, and the last sentence to wrap up for a conclusion while transitioning to the next paragraph(每一个自然段开始，要注意用过渡段的连接词，词组或句子，把每一部分串联成一个符合逻辑的整体。每一段开始用一个中心句，接下来用列子证明，句与句之间要有表示逻辑关系的词，词组，最后用一句话概括整段大意,并与下一段自然过渡。)
13 How to quote in the text (如何在正文中引用文献)In-text citations occur after the quote but before the period The author’s/authors’ name/s go before the page number with no comma in between ie “A lone woman is troubled with such dreams and such thoughts that she’s afraid of herself sometimes” (Hawthorne 431) If you go on to quote the same work, put the page number in a bracket only ie “She’s a blessed angel on earth; and after this one night I’ll cling to her skirts and follow her to heaven”(432) 文中引用文献的标注在引用部分后面，句号前面，作者姓空格页码，中间没有逗号)，如果同一页引用同一作品，则只标页码。
14 Use block quote when quotations are longer than four-typed lines Block quotations begin on a new line, are double-spaced and indented one-inch from the margin Do not use quotation marks The citation information (the author’s name and the page number) follow (如果被引用的部分超过三行，则引用整段。整段引用另起一行，双倍行距，自页边空白整体缩进一英寸(254厘米)，不用引号，末尾添加引用来源(作者姓空格页码)。
15 If you delete words from the original quote, insert an ellipsis, three periods with a space before and after each one(如果你去掉引文中的一些单词，用省略号(三个前后有空格的小圆点)。
16 If a source has more than three authors, use the first author’s surname followed by “et al” ie (Barker et al 23) (如果文献作者是三位以上，文中引用只用第一位作者的姓，后面是空格加“et al" 再空格加页码)
17Citation from a website:
A If the website has no page number,you simply use the author's surname after the periodie
B If you cite an indirect source, words quoted in another source ie(qtdin author's surname)
C Source with an unknown author is cited by a shortened title(The first word of the title with a quotation mark:ie "Automatically")
17 Conclusion wrap up what you have discussed in your paper Because it is B-level, the first paragraph is not indented (结尾部分 总结 论文中讨论的话题。因它是B级标题，第一段不缩进。)
18 How to Use Endnotes (如何使用尾注) Use endnotes to explain something that doesn’t fit in with the rest of the paragraph Avoid lengthy discussion in the endnote Endnote begins on a new page after the paper but before the Work/s Cited page Double space all entries and indent each entry 05 inch from the margin(如果有和本段不相吻合，可以用尾注加以详细解释。尾注要简洁，避免冗长的讨论。尾注在正文后另起一页，置于文献引用页之前，用双行距，左对齐，页边距是半英寸，即175厘米。
19 How to format the Work/s Cited page (引用作品格式)
The Work/s Cited page is a list of all the sources you cited in your paper It includes books, journals, magazines, online resources, films, CD-Rom, interview，classroom notes, blog, e-mail, diaries, etc(“引用作品”页是在你论文最后列出你文中引用的信息的来源, 包括书籍，期刊，报刊，网络，**，光盘，访谈，课堂笔记，博客，电子邮件， 日记 等)
The Works Cited page begins on a new page Center the title Works Cited without underlining, bolding, italicizing it If there is only one entry, write Work Cited引用作品页置于尾注页之后，另起一页。将Works Cited 的标题居中，不加下划线，不加斜体。如果只引用一项，则用单数“Work Cited"
List the entries in the alphebetically order 按照字母表的顺序排列。
MLA now requires all sources to have a publication marker For example, books receive the marker “print” after the citation Online sources have the marker of "Web" CD-Rom, E-mail, Blog for resources from CD-Rom, E-mail, and Blog respectively 现在MLA要求所有引用文献要有一个“出版标志" 比如，书藉后用"Print," 网络信息用"Web" ,光盘用CD-Rom，博客用Blog电子邮件用e-mail(详见以下例子。)
If a source doesn’t have a list of publisher, and you can infer who the publisher is Place the publisher’s name in brackets(如果原文没有出版社，但你能够猜到出版商是谁，可以用括号把出版商括起来。
Online Resources Citation: MLA no long requires URLs in the Works Cited, instead, you must write “web” before the date of access in the entry This serves as the entry’s publication marker ieContributors' names "Title of Resource" The Purdue OWL Purdue U Writing Lab, Last edited date Web Date of access 对于网络信息，MLA 不再要求给出详细网址，但你必须在你访问网址的时间之前注明“Web”作为出版标记。如：作者姓，名 “文章名” 网站，最后编辑日月年 Web 访问日月年
Russell, Tony, Allen Brizee, and Elizabeth Angeli "MLA Formatting and Style Guide" The Purdue OWL Purdue U Writing Lab, 4 Apr 2010 Web 20 July 2010
Note: 短篇小说课本引用格式：小说作者姓， 名 “文章标题” 论文集名称 Ed 论文集编者名姓 出版地: 出版社, 出版年代 起始页码Print
Lawrence,DH "The Rocking Horse Winner" The Norton Anthology of Short Fiction Ed RVCassill 5th ed New York: Norton, 1995 543-559 Print
注意：
1 现在MLA不再在书名下用下划线，而是用斜体字。
2 现在MLA要求用print 标记公开出版的纸质刊物的出版特征，包括书，杂志，报纸。
3 现在MLA不要求网络信息的详细网址，但要用Web 标记信息来源的出版特征。
以下信息来自网络，稍作改动。
1 独著
姓，名 书名 出版地: 出版社, 出版年代Print
Bambrough, Renford The Philosophy of Aristotle New York: The New American Library, 1963Print
2 两至三名作者
姓，名, 名姓, 名姓, and 名姓 书名 出版地: 出版社, 出版年代Print
Horton, Rod W, and Herbert W Edwards Backgrounds of American Literary Thought New York: Appleton-Century-Crofts, Inc, 1952Print
Atwan, Robert, Donald Mcquade, and John Wright Edsels, Luckies, and Frigidaires: Advertising the American Way New York: Dell, 1979Print
3 四名或以上作者
姓，名, et al 书名 出版地: 出版社, 出版年代Print
Belenky, Mary Field, et, al Women's Ways of Knowing: The Development of Self, Voice, and Mind New York: Basic, 1986Print
4 机构作者
机构名称 书名 出版地: 出版社, 出版年代Print
American Psychological Association Publication Manual of the American Psychological Association 4th ed Washington: American Psychological Association, 1994Print
5 匿名作者
书名 出版地: 出版社, 出版年代Print
The New York Times Atlas of the World New York: New York Times Books, 1980 Print
6 同一作者两本以上著作
以书名第一个主要单词的首字母顺序排列先后，作者的姓名放在第一条文献条目前，第二条文献条目前用三个连字号。
Bloom, Harold The Anxiety of Influence, a Theory of Poetry New York: Oxford University Press, 1973Print
--- A Map of Misreading New York: Oxford University Press, 1975Print
7 编著
一名编者:
姓, 名, ed 书名 出版地: 出版社, 出版年Print
Frye, Northrop, ed Romanticism Reconsidered New York: Columbia University Press, 1963Print
两名编者:
姓, 名, and 名姓, eds 书名 出版地: 出版社, 出版年Print
Glotfelty, Cheryll, and Harold Fromm, eds The Ecocriticism Reader: Landmarks in Literary Ecology Atherns: The University of Georgia Press, 1966Print
三名以上的编者:
第一编者姓, 名, et al 书名 出版地: 出版社, 出版年Print
Donadio, Stephen, et al, eds Emerson and His Legacy Carbondale: Southern Illinois University Press, 1986Print
8 译著
原作者姓, 名 书名 Trans 译者名姓 出版地: 出版社, 出版年Print
Freud, Sigmund Civilization and Its Discontents Trans James Strachey New York: Norton, !961Print
9 再版著作
姓，名 书名 版别序号 ed 出版地: 出版社, 出版年代Print
Fromkin, Victoria, and Robert Rodman An Introduction to Language 5th ed Ft Worth: Harcourt, 1993 Print
10 论文集中的文章
文章作者姓, 名 “文章标题” 论文集名称 Ed 论文集编者名姓 出版地: 出版社, 出版年代 起始页码Print
Wellek, Rene “Romanticism RE-examined” Romanticism Reconsidered Ed Northrop Frye New York: Columbia University Press, 1963 75-98Print
Hall, Stuart, “Minial Selves” Studying Culture Eds Ann Gray and Jim McGuigan Arnold: Hodder Headline Group, 1993 131-42 Print
Note: 短篇小说课本引用格式：小说作者姓， 名 “文章标题” 论文集名称 Ed 论文集编者名姓 出版地: 出版社, 出版年代 起始页码Print
Lawrence,DH, "The Rocking Horse Winner" The Norton Anthology of Short Fiction Ed RVCassill 5th edNew York: Norton, 1995 543-559 Print
11 多卷、多册或再版著作
书名后注明第几册或第几卷(带翻译)
姓, 名 书名 卷目 vols Trans译者姓名 出版地: 出版社, 出版年代Print
Plato Laws 2 vols Trans R G Bury Leob Classical Libery New York: G P Putnam's Sons, 1926 Print
12 前言，后记
前言作者姓，名 “Introduction (或Forewords 或 Preface)” 书名 By 书目作者名姓 出版地: 出版社, 出版年代 前言起始页码Print
后记作者姓，名 “Afterwords” 书名 By 书目作者名姓 出版地: 出版社, 出版年代 后记起始页码Print
Schlesinger, Arthur M, Jr “Introduction” Pioneer Women: Voices from the Kansas Frontier By Joanna L Stratton New York: Simon, 1981 11-15Print
13 期刊文章
文章作者姓, 名 “文章标题” 杂志名称 卷号 期号 (出版年代): 起始页码Print
Maguire, James H “The Canon and the 'Diminished Thing” American Literature 60 (1988): 645-52Print
Davis, Sherri Heckler “The Zen Art of Prewriting” New Mexico English Journal12 1 (1988): 21-23Print
14 周刊或双周刊文章
文章作者姓, 名 “文章标题” 杂志名称 出版日月年: 起始页码Print
Hoagland, Edward “Standing Tough in the Desert” New York Times Book Review 7 May 1989: 44-45Print
15 月刊或双月刊文章
文章作者姓, 名 “文章标题” 杂志名称 出版月年: 起始页码Print
Weiss, Philip “The Book Thief: A True Tale of Bibliomania” Harper’s January 1994: 37-56Print
16 报纸文章
文章作者姓, 名 “文章标题” 报纸名称 出版日月年, 版, 栏, 页码Print
Intraub, Anna Jinagwang “How I learned to Read” New York Times 13 January 2002, Section 4, Column 6, Page 16Print
如果作者未知, 版栏信息缺失, 格式为:
“文章标题” 报纸名称 出版日月年: 页码Print
“Learn English through Football” 21st Century Supplement 21 Feb 2002: IIIPrint
17 Multimedia sources: (多媒体资料) MLA format for multimedia Sources requires a medium description at the end of the citation Film, DVD, Radio, Web E-mail, Presentation and other descriptions should be used to indicate the type of multimedia that is being referrenced MLA格式要求多媒体资料的引用要在应用信息后面加上媒体形式：如**，DVD，收音机，网络，电子邮件，演讲等。
⑴ 网络著作
l General Format: Author(corporations, governments): Title of Site Sponsor Date Created (use nd if not given) medium Date accessed
基本格式：作者(机构，政府)：网页标题。网站，网页制作日月年(若无，用n d)媒介 访问日月年。
l 整个网站：如：United States Environmental Protection Agency: Drinking Water Standards EPA, 8 July 2004 Web 24 Jan 2006
l 网页上一篇不知发表日期的文章：
Shiva “Biothics: A Third World Issue” Nativeweb Nativeweb, n d Web 22 Feb 2006
l 网上著作
作者姓, 名 书名 出版年代 检索日月年Web
Emerson, Ralph waldo Essays: First Series184112 Feb 1997 Web
l 网络文章
作者姓, 名 文章名称 来源名称 最后编辑日月年Web 检索日月年
Fischer, Michael F “Worthless Words for the Day” 21 November 2005Web 8 May 2007 19
l 博客：作者姓, 名 博客名称 来源名称 最近编辑日月年Web 检索日月年 ：Li ChengPeng Li Cheng Peng Sinacom, 30 Dec 2011 Web 4 Jan 2011
⑵电邮：作者 主题 电邮大意 发邮件日月年 E-mail
ie Mu Xinghua “Re: The Main Characters in ‘Flowering Judas’” Message to the teacher 20 Dec 2011 E-mail
⑶光盘： 作者姓, 名 “条目标题” 光盘名称 (其他信息) CD-ROM 出版地: 出版社, 出版年代
“Communion” The Oxford English Dictionary 2nd ed CD-ROM Oxford: Oxford UP, 1992
⑷ 视频: 作者 “视频标题” 视频用途 网站 上传日月年 Web 访问视频日月年
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