00470cam a22001577a 4500 180718b1983 xxu||||| |||| 00| 0 eng d 0 85226 897 1 V44x54 V438 Varshney, C K Water pollution and management Edited by C K Varshney New Delhi Wiley Eastern 1983 242p Water quality management. Water - Pollution Water - Pollution - Environmental aspects 410468 410468 0 0 0 0 IIPA IIPA 2009-01-19 V44x54 V438 5561 2018-07-21 2018-07-21 BK