Water pollution :
Knight, Allen W.
Water pollution : a guide to information sources / Allen W. Knight, Mary Ann Simmons. - Detroit, Mich. : Gale Research Co., 1980. - 278 p. - Man and the environment information guide series ; v. 9 .
0810313464
Water pollution--bibliography.
ZWA 689
Water pollution : a guide to information sources / Allen W. Knight, Mary Ann Simmons. - Detroit, Mich. : Gale Research Co., 1980. - 278 p. - Man and the environment information guide series ; v. 9 .
0810313464
Water pollution--bibliography.
ZWA 689