TY  - BOOK
AU  - Chhatwal, G.R.
AU  - Mehra, M.C.
TI  - Encyclopaedia  of Environmental Pollution and its Control: Noise Pollution
SN  - 8170412439
U1  - REF 363.73 CHH 
PY  - 1989///
CY  - New Delhi
PB  - Anmol Publications, 
KW  - Encyclopaedia  of Environmental Pollution and its Control
N1  - Vol 3
ER  -