APA
(1989). Root Crops and Low-input Agriculture. Ibadan: International institute of Tropical Agriculture.
Chicago
1989. Root Crops and Low-input Agriculture. Ibadan: International institute of Tropical Agriculture.
Harvard
(1989). Root Crops and Low-input Agriculture. Ibadan: International institute of Tropical Agriculture.
MLA
Root Crops and Low-input Agriculture. Ibadan: International institute of Tropical Agriculture. 1989.