TY  - BOOK
AU  - Lilley,Geoffrey Michael
ED  - Noise Advisory Council.
ED  - Great Britain.
TI  - Helicopter noise in the London area: report by a working group of the [Noise Advisory] Council [i.e. the Working Group on Noise from Air Traffic]
SN  - 011751229X
PY  - 1977///
CY  - London
PB  - H.M.S.O. for the Department of the Environment
KW  - Helicopters
KW  - Noise
ER  -