TY  - BOOK
AU  - Conference on Water Quality and its management (1st) (New Delhi) (1991)
TI  - Proceedings. Ed. by C V J Varma, and others
U1  - X9(D24):8.2.N9, N8 
PY  - 1998///
CY  -  New Delhi 
PB  - C B I P      
ER  -