TY  - BOOK
AU  - Meena,  Madan Lal 
TI  - Environmental factsheets
U1  - 628.50154 
PY  - 2009///
CY  - West Bengal
PB  - Department of Environment, government of west Bengal
KW  - Environmental chemistry
KW  - Biology & Environmental Sciences
KW  - Air pollution
ER  -