Karia,G.L. Christian,R.A. Waste water treatment : concepts and design approach / [by] G.L.Karia, R.A.Christian - New Delhi PHI Learning 2010 - xiii, 365 pages. Include index. ISBN: 9788120328600 Subjects--Topical Terms: Waste waterWaste treatmentWaste technology Dewey Class. No.: 628.43 / KAR