Soil and water management and biotechnology in Africa : report of the fact-finding mission / organized by the African Academy of Sciences (AAS) ... [et al.]. - Nairobi : Academy Science Publishers, c1989. - 87 p. ; 21 cm. "Phase I: June-July 1987; phase II: November-December 1987." ISBN: 9966831037 (pbk.) Subjects--Topical Terms: Soil management--Africa.Water conservation--Africa.Watershed management--Africa.Biotechnology--Africa.Natural resources--Management.--Africa