TY  - GEN
AU  - Ambasht, R.S
ED  - Ambasht, P.K
TI  - Environment and Pollution : an ecological approach 
SN  - 9788123923499
U1  - 363.73 
PY  - 1990///
CY  - New Delhi
PB  - CBS Publishers  & Distirbutors
KW  - Pollution
ER  -