Writers sometimes neglect to identify the sources from which they have drawn their information. You should include a complete citation for each source you refer to in your document. The citation should appear in the text of the document (as an in-text citation, footnote, or endnote) or in a works cited list, references list, or bibliography.

The following examples use MLA style for citing sources; more detailed information about the sources appears in a list of works cited at the end of the document. In the first example, the writer uses a combination of attribution and parenthetical information; in the second example, the writer provides only a parenthetical citation.