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East African crops : an introduction to the production of field and plantation crops in Kenya, Tanzania and Uganda / av Acland, J. D. (Julien Dyke)

Seeds that give participatory plant breeding / av Vernooy, Ronnie, 1963-

An electronic book accessible through the World Wide Web; click to view

Semillas generosas mejoramiento participativo de plantas / av Vernooy, Ronnie, 1963-

An electronic book accessible through the World Wide Web; click to view

Les semences du monde l'amélioration participative des plantes / av Vernooy, Ronnie, 1963-

An electronic book accessible through the World Wide Web; click to view

Crop variety improvement and its effect on productivity the impact of international agricultural research /

An electronic book accessible through the World Wide Web; click to view