Scholars of religion write books. Lots of those books are still in print form, which makes research in religion a little more challenging when you need to use our digital collection.
Chicago style for citing sources is standard in history and religious studies, so it's not a bad thing to get used to using. I've included a link to a very detailed guide to using it by my colleague, and to the manual of style itself. Learn how to cite a book, a journal article, and something from a website, and that will cover about 80% of what you need to cite at BC.