An annotated bibliography is like an expanded Works Cited (MLA) or References (APA) page where your reader sees not only the formal citation but a paragraph containing a summary and explanation of each source. You’ll list your sources alphabetically according to MLA or APA citation style as you would in a Works Cited or References page. Each formal citation will be followed by a short paragraph containing description and summary, an indication of the credibility, authority, or bias of the source, and a statement of how the source might fight into an argument.