TY  - BOOK
AU  - Purohit  , S .S
TI  - Air environment and pollution
SN  - 978-81-7754-160-1
AV  - TD 883.7 .P87 
PY  - 0000/// ( India )
CY  - jodhpur
PB  -  Agrobios
KW  - Air-Pollution
ER  -