| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Crop Improvement, Adoption and Impact of Improved Varieties in Food Crops in Sub-Saharan Africa | 978-1-78O64-4O1-1 (1-78O64-4O1-9) | 2015 | Jeffrey Alwang |
S. W. · S. Walker · T.S. · T. S Walker · T W · T. Walker · Thomas S. · Thomas W. · Thomas Walker