| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Reversing Asthma: Breathe Easier with This Revolutionary New Program | 978-O-446-67363-1 (O-446-67363-3) | 1998 |
n.d. · R.D. · R. F. · R.N. · Richard D. · Richard F. · Richard Firshein · Richard N. · Richard N. Firshein