@book{18663,
	author = {Unesco.},
	title = {Scientific problems of the humid tropical zone deltas and their implications;},
	publisher = {UNESCO},
	year = {[1966]},
	series = {Humid tropics research. Recherches sur la zone tropicale humide},
	address = {[Paris]},
	note = {On label mounted on t.p.: Distributed by UNESCO Publications Center, New York.}
}