Ongley, Edwin D. Control of water pollution from agriculture / Edwin D. Ongley. - Delhi : Daya, 1996. - 101p HB ISBN: 8170353971 Rs 450.00 Standard No.: 1103 [old SOUL v1.0 record id] Subjects--Topical Terms: Water Pollution Dewey Class. No.: 363.7394 / On 1 c