This quotation comes from a print source, so a page number is needed.

The source of this information should be identified (this online source has no page numbers).

Cite each source you refer to in the text, following the guidelines of the documentation style you are using. (The preceding examples follow MLA style—see Chapter 49; for other styles, see Chapters 50–52.) Omitting documentation can result in charges of plagiarism (see Chapter 15).