| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The Vegetarian Handbook: Eating Right for Total Health | 978-0-312-14441-8 (0-312-14441-5) | 1996 | |
| Ultimate Training: Gary's Null's Complete Guide to Eating Right, Exercise, and Living Longer | 978-0-312-08796-8 (0-312-08796-9) | 1993 | Howard Robins M.D. |
D G · D.G.P. · D. P. · Dr. G. · Dr. Gary Null · Dr. N · Dr.P · G. N. · G. P. · Gary Null · Gary P. · N.P.