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Book List
4
-
Planning technologies appropriate to farmers : concepts and procedures / [ed. by Derek Beyerlee...et al.].
- International Maize and Wheat Improvement Center,
- 1980.
- México :
-
Maize research in sub-Saharan Africa : an overview of past impacts and future prospects / Derek Byerlee ; with contrib. from Ponniah Anandajayasekeram...[et al.].
- CIMMYT,
- 1994.
- México :
-
Dryland wheat in India : the impact of technical change and future research challenges / Derek Byerlee ; in collab. with the Indian council of agricultural research.
- CIMMYT,
- 1992.
- México :
-
Technical change in maize production : a global perspective / Derek Byerlee and Miguel A. López-Pereira.
- CIMMYT,
- 1994.
- México :