Here are some more sources to help with creating an Annotated Bibliography:
https://owl.english.purdue.edu/owl/resource/614/02/
https://owl.english.purdue.edu/owl/resource/614/03/
http://guides.library.cornell.edu/annotatedbibliography
http://lib.calpoly.edu/research/guides/bibliography.html
If you still need some help, here is a YouTube video that can give you a step-by-step how-to for an Annotated Bibliography: