Are you new to sociology? Or new to the sociological study of religion? The two journals linked below publish works by sociologists and other social scientists that study religion. Browsing some recent issues may help you to learn more about the topics and methods used in this field.
You don't need to memorize every rule of APA Style. Instead, find an example of a similar type of source cited in APA style (for example, a journal article, a book chapter, or a website), and use it as a pattern you will follow to create your own citation.