TY  - BOOK
AU  - Sankara Pitchaiah, P.
ED  - Sambasiva Rao, B.
TI  - Water, ecology, pollution, and management
SN  - 8185076
U1  - 333.9100954 
PY  - 1991///
CY  - Allahabad
PB  - Chugh Publications
ER  -