TY  - BOOK
AU  - Pitchaiah, P. Sankara and Rao, B. Sambasiva
TI  - Water ecology pollution and management
SN  - 8185076
U1  - 363.7394 
PY  - 1991///
CY  - Allahabad
PB  - ; Chugh
KW  - Pollution
KW  - Water Pollution
ER  -