The 7th Edition of the Publication Manual of the American Psychological Association provides guidelines in creating an annotated bibliography.
The annotated bibliography allows your professor to see the sources you will use in your final research paper. It shows that you have planned ahead by conducting research and gave thought to the information you will need to write a complete research paper. You provide annotations to summarize or evaluate the sources used. The references follow the APA rules for citations and the good news is you have your reference list complete before writing your paper!