APA (7th ed.) Citation

O'Gorman, R. T., & Faulkner, M. (2000). The complete idiot's guide to understanding Catholicism. Alpha Books.

Chicago Style (17th ed.) Citation

O'Gorman, Robert T., and Mary Faulkner. The Complete Idiot's Guide to Understanding Catholicism. Indianapolis, IN: Alpha Books, 2000.

MLA (9th ed.) Citation

O'Gorman, Robert T., and Mary Faulkner. The Complete Idiot's Guide to Understanding Catholicism. Alpha Books, 2000.