| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| Why?: The Answer to Why God Allows Bad Things to Happen to Us | Paperback | 978-1-4627-2992-0 (1-4627-2992-4) | 2013 |
| Why?: The Answer to Why God Allows Bad Things to Happen to Us | Hardcover | 978-1-4627-2994-4 (1-4627-2994-0) | 2013 |