TY  - GEN
AU  - Pal, Goutam
TI  - Paribesh o dushan: paribesh vijnan
SN  - 81-82-019-X
U1  - 363.7 
PY  - 2009///
CY  - Kolkata
PB  - Dasgupa
KW  - ENVIRONMENTAL SCIENCE
ER  -