Williams, C. N. Tree and field crops of the wetter regions of the tropics / C.N. Williams, W.Y. Chew, J.H. Rajaratnam. - London : Longman, 1980. - ix, 262 p. ; ill., maps. - Intermediate tropical agriculture series . ISBN: 0582603196 Subjects--Topical Terms: Tropical crops. Dewey Class. No.: 631.50913 / W722