G *** F · G. Zimmer · Gary F. Zimmer & Leilani Zimmer-Durand · Gary Zimmer
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The Biological Farmer | 978-1-60173-134-0 (1-60173-134-5) | 2016 | Leilani Zimmer-Durand |
| The Biological Farmer: A Complete Guide to the Sustainable & Profitable Biological System of Farming | 978-0-911311-62-4 (0-911311-62-9) | 2000 | |