The best distance between the material and the citation is a matter of judgment. If a word or phrase is particularly contentious, an inline citation may be added next to it within a sentence, but adding the citation to the end of the sentence or paragraph is usually sufficient. Editors should exercise caution when adding to or rearranging material to ensure that text-source relationships are maintained.
This section is where the bibliographic citations to the reliable sources that were used to build the article content are presented. The most popular choice for the section heading's name is "References"; other articles use "Notes", "Footnotes", or "Works cited" (in diminishing order of popularity). Several alternate titles ("Sources", "Citations", "Bibliography") may also be used, although each is problematic: "Sources" may be confused with source code in computer related articles or ways to acquire a product; "Citations" may be confused with official awards or a summons to court; "Bibliography" may be confused with a list of printed works by the subject of a biography.
Sometimes more than one section is needed to organize the citations. For example, articles using [[Help:Shortened footnotes|shortened citations]] may use one section for full bibliographic citations and a separate section for shortened citations.
A reference section should not be confused with [[Wikipedia:External links|external links]] or [[WP:FURTHER|further reading]] sections, neither of which contain sources that were used to build the article content. For more information and the relevant style guide on reference sections, see [[Wikipedia:Citing sources]].
==Inline citations and article classes==