TY  - BOOK
AU  - Chhatwal, G.R.
AU  - Mehra, M.C
AU  - Satake, M
AU  - Katyal. T
AU  - Nagahiro, T
TI  - environmental water pollution and its control
SN  - 8170412145
U1  - 363.7394 CHH 
PY  - 1989///
CY  - New Delhi
PB  - Anmol publications
ER  -