TY  - BOOK
AU  - Crowhurst,Norman H.
TI  - Basic audio
T2  - A Rider publication,
AV  - TK5981 .C77
U1  - 621.3819 
PY  - 1959///]
CY  - New York
PB  - J.F. Rider
KW  - Electro-acoustics
KW  - Electronics
KW  - Sound
UR  - http://www.archive.org/details/basicaudio01crow
UR  - http://www.openlibrary.org/books/OL6251395M
ER  -