F.A.O./S.I.D.A./A.R.C.N. Regional Seminar on Shifting Cultivation and Soil Conservation in

F.A.O./S.I.D.A./A.R.C.N. Regional Seminar on Shifting Cultivation and Soil Conservation in | Cutter Number

F.A.O./S.I.D.A./A.R.C.N. Regional Seminar on Shifting Cultivation and Soil Conservation in Africa, Ibadan, Nigeria, 1973