TY  - BOOK
AU  - Khanna, Dev Raj
TI  - Ecology and pollution of Ganga River: A Limnological study at Hardwar
U1  - 577.6  KHA-E 
PY  - 1993///
CY  - Ashish Publishing House, New Delhi
KW  - Aquatic ecology-- Fresh water ecology-- Pond ecology-- Limnology
ER  -