Gloyna, Earnest F. Advances in water quality improvement edited by Earnest F. Gloyna, W. Wesley Eckenfelder, Jr. - Austin University of Texas Press 1968. - xviii, 513 p. illus. - Water resources symposium no. 1 . Includes bibliographies. LCCN: 68063334 //r84 Subjects--Topical Terms: Sewage--Purification--Addresses, essays, lectures.Water--Pollution--Addresses, essays, lectures. LC Class. No.: TD745 / .G58 Dewey Class. No.: 628/.168