Nierenberg William A Ed. Encyclopedia of environmental biology - San Diego Academic Press 1995 - p. cm. ISBN: 0122267303(Set) (hbd) 0122267311(V 1) Standard No.: 3816 Source: Shankar, Reference Collections Subjects--Topical Terms: Ecology Encyclopedia Environmental sciencesBiology Dewey Class. No.: G:55k, N5.1-.3 RR