TY  - BOOK
AU  - Ray,P..
TI  - Ecological imbalance of the ganga river system : its impact on aquaculture / 
SN  - 8170351952
U1  - 577.64 
PY  - 1998///
CY  - New Delhi : 
PB  - Daya Publishing House , 
KW  - ECOLOGY
N1  - Includes index
ER  -