| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Christian Ethics: Or, the True Moral Manhood and Life of Duty. a Text-Book for Schools and Colleges | 978-1-142-21656-6 (1-142-21656-X) | 2010 |
D. G. · D. Gregory · D S · D.S. Gregory · Daniel Gregory · Daniel S · S. G. · S. Gregory