Black, John A, b.1938 Water pollution technology John A. Black - Reston, Va Reston Pub. Co 1977 - 260 p ill 24 cm Includes bibliographies and index ISBN: 0879098759 LCCN: 76-27740 Subjects--Topical Terms: Water--PollutionWater--Pollution--MeasurementSewage--Purification