Texas State University librarians have created a guide compiling guides regarding different citation styles, including information on the citation style for the Annals of the Association of American Geographers (AAG).
AAG is based on the Chicago Manual of Style.
The Alkek Library pays for a citation management tool called RefWorks. You can export citation information from our databases to RefWorks and then use the system to create bibliographies. It even has AAG! You still need to review the citations and make sure they are correct though!
You'll see something like this:
It's important to know the parts of a citation so you can interpret it correctly. You must have at least the Journal name, volume, issue, and page number to be able to locate the article.