Scientific problems of the humid tropical zone deltas and their implications; proceedings of the Dacca symposium. Les problémes scientifiques des deltas de la zone tropicale humide et leurs implications; actes du colloque de Dacca. Les Problémes scientifiques des deltas de la zone tropicale humide et leurs implications. Unesco. Dacca, Pakistan (City). University. Deltas Congresses. GB592.D4 S3 551.5942 19 UNS On label mounted on t.p.: Distributed by UNESCO Publications Center, New York. Sponsored by UNESCO [and others] and held at the University of Dacca Feb. 24-March 2, 1964. Includes bibliographies. [Paris] UNESCO [1966] [1966] 1966 Text 422 p. : eng Humid tropics research. Recherches sur la zone tropicale humide Humid tropics research. Tropics Congresses.