An annotated bibliography should include a summary of the work, and may also contain an evaluation and analysis.
The annotation runs together with the citation, as follows:

Munro, Alice. The Progress of Love. New York: Penguin, 1995. A collection of short stories loosely connected by themes of love found and lost. Many of the stories are set in the author's native Canada, and contain glimpses of the landscape and weather typical of that land. Munro has won several national and commonwealth awards for her writing; this book includes several of her best stories.

The above example found at: “MLA Style examples based on MLA Handbook for Writers of Research Papers.” Trexler Library Muhlenburg College.  3 November 2001.  Muhlenburg College.  10 January 2003 <http://www.muhlenberg.edu/library/ref/acad/s_mla.html>

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