| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| El catolicismo | 978-0-02-864304-5 (0-02-864304-6) | 2001 | Ph.D., Bob O'Gorman · M.A., Mary Faulkner · Bob O'Gorman · Mary Faulkner |
| The Complete Idiot's Guide to Understanding Catholicism, 3rd Edition | 978-1-59257-535-0 (1-59257-535-8) | 2006 | Ph.D., Bob O'Gorman · M.A., Mary Faulkner |