The official guide called, Publication manual of the American Psychological Association: the official guide to APA style is unfortunately not available online via the library at this time. However, both the E.J. Pratt and Emmanuel College Libraries (as well as most U of T Libraries) have a print copy that should be always available in the reference section of the library.
See this record for the call number and library locations.
It offers a good deal of information about citation and paper style.
See the various topics at the bottom of this Style and Grammar guidelines page,
and more specifically this page of in-text citation guidelines.
Refworks is a citation management tool available at no charge to students at the University of Toronto.
The UTL catalogue and many databases will export directly to Refworks. It can help keep track of your sources and can help create your bibliography (list of works cited) with a few clicks.
Please keep in mind that automatic citation generation tools do occasionally make mistakes, so you should carefully check any bibliography generated by a citation tool/application (check that all nouns that should start with a capital letters have actually been capitalized, etc.)
Please visit this U of T Libraries Refworks page
If you have never had a Refworks account, click on: "Log in to Proquest Refworks"
Click on "Create account" and follow the steps to with your utoronto email address.