Soil fertility research for maize and bean production systems of the Eastern Africa highlands : Proceedings of a workshop group meeting, Thika, Kenya, 1-4 September, 1992

Wortmann, Charles S.; Ransom, Joel K. (eds.). 1993. Soil fertility research for maize and bean production systems of the Eastern Africa highlands : Proceedings of a workshop group meeting, Thika, Kenya, 1-4 September, 1992. Centro Internacional de Agricultura Tropical (CIAT), Network on Bean Research in Africa, Dar es Salaam, TZ. 114 p. (CIAT African workshop series no. 21)