TY  - BOOK
AU  - Swarup R
TI  - An introduction to man and his environment
SN  - 81-7099-361-X
U1  - 628.5 
PY  - 1992///
CY  - New delhi
PB  - Mittal publications
KW  - environmental pollution
KW  - air pollution
KW  - water pollution
ER  -