TY  - BOOK
AU  - Pitchaiah, P. Sankara, ed.
TI  - Water ecology pollution and management
U1  - 577.627 21st ed.
PY  - 1991///
CY  - Allahabad
PB  - Chugh Publications
KW  - Rao
KW  - B. Sambasiva, ed
KW  - Water conservation
KW  - Water management
KW  - Water pollution ecology
ER  -