Encyclopaedia of environmental water pollution edited by G.R. Chhatwal - New Delhi Anmol Publications 1996 - 3v.; 26cm. ISBN: 8174684351 Subjects--Topical Terms: sWater-Pollution-EncyclopediasWater Pollution-EncyclopediasWater Pollutants-Encyclopedias Dewey Class. No.: 628.16803 / ENC