TY  - BOOK
CN  - RC963.3 .N3
CN  - RC963.3
CY  - [Rockville, Md. :
DA  - 1972]
ID  - 110724
KW  - Industrial noise.
KW  - Noise
KW  - Noise
N1  - "PB 213 463".
PB  - Distributed by National Technical Information Service, U.S. Dept. of Commerce, Springfield, Va.,
PP  - [Rockville, Md. :
PY  - 1972]
T1  - Criteria for a recommended standard :occupational exposure to noise.
TI  - Criteria for a recommended standard :occupational exposure to noise.
ER  -