TY  - BOOK
AU  - Purkis,H.J.
TI  - Building physics: Acoustics
T2  - The commonwealth and international library of science technology engineering and liberal studies
U1  - C3:7 K6P 
PY  - 1966///
CY  - Oxford
PB  - Pergamon press
KW  - Acoustics
N1  - Includes appendix and index
ER  -