@UNPUBLISHED {KNIPSCHEER:1981, title = {Rice, Maize, Beans, Gari, Yam, and Palm oil in Ibadan and Oyo Rural Regions: Agricultural Economics Information Bulletin No. 2}, author = {Knipscheer, H. C. }, year = {1981}, month = {May}, note = {CRP GRisp; Rice; CRP Maize; CRP Grain Legumes; Beans; RTB; Cassava; Yam; Agricultural Economics Information Bulletin No. 2, IITA, September 1979. 6p.}, }