TY  - BOOK
AU  - Wadhwa, Yash Pal
TI  - Air pollution: causes and control 
SN  - 9788178844237
U1  - 333.74 
PY  - 2009///
CY  - New Delhi
PB  - Cyber Tech Publications
KW  - Metal pollution
KW  - Indoor air pollution
ER  -