APA is the American Psychological Association. Their bibliographical references are done in a way similar, but not the same as the MLA style.
The following style is proper form for writing APA citations:
Author's last name, first initial. (Date of publication). Italicized title of source. City of publication, state: publisher.
Be aware, only the first word in the title is capitalized.
An example of such:
Bowerman, D. (2002). Why cats sometimes smell. Toronto, ON: University of Toronto Press.
For periodicals, the format is a little different:
Author's last name, first initial. (Date of publication (Y,M)). Title of article, only first letter is capitalized.
Periodical or Journal Title. Page numbers.
And an example of this:
Durden, T. (2002, June). How to make fantastic
soap.
Paper Street Business Report. pp 18-88.