TY  - BOOK
AU  - N Yogendra  Srivastava
TI  - Environmental pollution
SN  - 817024210X
U1  - 363.7 
CY  - New Delhi
KW  - Air pollutants
KW  - Land pollution
KW  - Noise pollution
KW  - Radiation pollution
KW  - Water Pollution
N1  - 3B 1 & 2
ER  -