Patwardhan, A.D. Industrial waste water treatment / A. D. Patwardhan - India Prentice Hall of India 2008 - 292 p. ISBN: 9788120333505 Subjects--Topical Terms: Water --Pollution.Sewage --Purification. ᅠFactory and trade waste. ᅠ Dewey Class. No.: 628.54 PAT-A