Desordenes nutricionales de la yuca (Manihot esculenta Crantz) /

by Asher, C. J., Asher, C. J., Edwards, D.G., Howeler, R. H.
Published 1980

Nutritional disorders of grain sorghum /

by Grundon, N.J., Edwards, D.G., Takkar, P.N, Asher, C.J
Published 1987