Bibliography n : a list of sources (books, articles, etc.) used when researching a topic.
Annotation n : a note that describes, explains, or comments on something.
A annotated bibliography is a list of sources, presented in a standard format, that contains a summary and/or evaluation of each source.
Reference - the source you are using, written in a standardized format. Types and sources may vary, but you should generally be looking for:
Annotation - A summary or evaluation of each source that demonstrates understanding of the source and that prepares you to build a strong case in your own paper. Every annotation should: