Proceedings from a Symposium on the Sustainability of Agricultural Production Systems in Sub-Saharan Africa, Sept. 4-7, 1989.
Seminar Report from a seminar on Integrated Pest Management, 1989.
Proceedings from a Symposium on the Sustainability of Agricultural Production Systems in Sub-Saharan Africa, Sept. 4-7, 1989.
Seminar Report from a seminar on Integrated Pest Management, 1989.
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