TY  - BOOK
AU  - Swarup,R.
TI  - Encyclopaedia of ecology, environment and pollution control
SN  - 8170993784
U1  - 628.03 
PY  - 1992///
CY  - New Delhi
PB  - Mittal Publications , 
KW  - Pollution
KW  - Environmental protection
ER  -