| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The tropical tuber crops: Yams, cassava, sweet potato, and cocoyams | 978-0-471-99608-8 (0-471-99608-4) | 1978 |
| Tropical root and tuber crops: Production, perspectives, and future prospects | 978-92-5-103461-3 (92-5-103461-3) | 1994 |