TY  - BOOK
AU  - Rao,M.N.
AU  - Rao,H.V.N.
TI  - Air pollution
SN  - 0074518712
U1  - 363.7392 19
PY  - 1989///
CY  - New Delhi
PB  - McGraw-Hill Company Limited
KW  - Air Pollution
N1  - gm
N2  - Environment Management
ER  -