For most Religious Studies courses, you will cite sources in either MLA or Chicago Style.
The Zotero bibliographic management system comes with both of these styles pre-installed - see box at right. You may also use an online tool like this Citation Builder to format your citations.
Purdue Owl has an excellent guide on formatting in the MLA style.
Zotero can help you manage and properly format your citations.
Zotero is a free add-in to your Firefox browser.