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 - 262 p. : ill., maps. ; 22 cm. - Intermediate tropical agriculture series . Includes bibliographies and indexes ISBN: 0582603196 Subjects--Topical Terms: Tropical crops