TY  - BOOK
AU  - Tripathi, A.K., ed.
TI  - Air pollution Volume-I
T2  - Protect global earth series
SN  - 8170245214
U1  - 628.53 21st ed.
PY  - 1993///
CY  - New Delhi
PB  - Ashish Publishing House
KW  - Air pollution
KW  - Environmental protection
KW  - Pollution
ER  -