about: the research concept acknowledging the use of another's ideas

Loosely, a citation is a reference to a published or unpublished source (not always the original source). More precisely, a citation is an abbreviated alphanumeric expression (e.g. 1) embedded in the body of a intellectual work that denotes an entry in the bibliographic references section of the work for the purpose of acknowledging the relevance of the works of others to the topic of discussion at the spot where the citation appears. Generally the combination of both the in-body citation and the bibliographic entry constitutes what is commonly thought of as a citation (whereas bibliographic entries by themselves are not).

A prime purpose of a citation is intellectual honesty; to attribute to other authors the ideas they have previously expressed, rather than give the appearance to the work's readers that the work's authors are the original wellsprings of those ideas.

The forms of citations generally subscribe to one of the generally-accepted citations systems, such as the Harvard, APA, and other citations systems, as their syntactic conventions are widely-known and easily interpreted by readers. Each of these citation systems has its respective advantages and disadvantages relative to the tradeoffs of being informative (but not too disruptive) and thus should be chosen relative to the needs of the type of publication being crafted. Editors will often specify the citation system to use.

Bibliographies, and other list-like compilations of references, are generally not considered citations because they do not fulfill the true spirit of the term: deliberate acknowledgement by other authors of the priority of one's ideas.

A bibliographic citation is a reference to a book, article, web page, or other published item. Citations should supply sufficient detail to identify the item uniquely. Different citation systems and styles are used in scientific citation, legal citation, prior art, and the arts and the humanities.

A citation number, used in some citation systems, is a number or symbol added inline and usually in superscript, to refer readers to a footnote or endnote that cites the source. In other citation systems, an inline parenthetical reference is used rather than a citation number, with limited information such as the author's last name, year of publication, and page number referenced; a full identification of the source will then appear in an appended bibliography.

Citation content

Citation content can vary depending on the type of source and may include:

• Book: author(s), book title, publisher, date of publication, and page number(s) if appropriate.
• Journal: article title, journal title, date of publication, and page number(s).
• Newspaper: author(s), article title, name of newspaper, section title and page number(s) if desired, date of publication.
• Web site: author(s), article and publication title where appropriate, as well as a URL, and a date when the site was accessed.
• Play: inline citations offer part, scene, and line numbers, the latter separated by periods: 4.452 refers to scene 4, line 452. For example, "In Eugene Onegin, Onegin rejects Tanya when she is free to be his, and only decides he wants her when she is already married" (Pushkin 4.452-53).Brigham Young University 2008.
• Poem: spaced slashes are normally used to indicate separate lines of a poem, and parenthetical citations usually include the line number(s). For example: "For I must love because I live / And life in me is what you give." (Brennan, lines 15–16).