TY - BOOK AU - Norman,M J T. AU - Pearson,C.J.. AU - Searle,P.G.E.. TI - The ecology of tropical food crops / SN - 0521422647 U1 - 630.2 PY - 1984/// CY - Cambridge : PB - Cambridge University Press , KW - FOOD CROPS-ECOLOGY-TROPICS N1 - Includes bibliography and index ER -