TY  - BOOK
AU  - Sundarsan,B.B.
AU  - Thergaonkar,V.P.
AU  - Swaminathan,R.S.
TI  - Air quality monitoring: a course manual  
U1  - 628.5302 
PY  - 1981///
CY  - Nagpur
PB  - S. B. Dabadgho
ER  -