TY  - BOOK
AU  - Freeman,J.J.
TI  - Principles of noise
U1  - 621.3818 
PY  - 1958///
CY  - New York
PB  - John Wiley
KW  - Noise
KW  - Sound
KW  - Measurement
KW  - Sound analysers
N1  - Includes index
ER  -