TY  - BOOK
AU  - Bies, David A
AU  - Hansen,Colin H
TI  - Engineering noise control: theory and practice 
SN  - 0046200223
PY  - 1998///
CY  - London
PB  - Unwin Hyman
KW  - Noise control
N1  - Includes glossary and index; References: p. 378-383
ER  -