Environmental Water Pollution : Causes, Effects and Control - P.N.Prasad; T.R.Amarnath (New Delhi Crescent Publishing Corporation, 2010)
P.N.Prasad & T.R.Amarnath: Environmental Water Pollution : Causes, Effects and Control. New Delhi. Crescent Publishing Corporation, 2010. 81-8342-177-5 Rs. 900.00--(363.7394P.N)
ENGLISH