TY  - BOOK
AU  - Trivedy, R.K.  .
TI  - Introduction to air pollution / 
SN  - 81-900553-0-5
U1  - E1981:(D854) 
PY  - 1995///
CY  - Jaipur : 
PB  - Technoscience Publications , 
KW  - Air Pollution
ER  -