TY  - BOOK
AU  - Greenlees, A E.
TI  - Amplification and distribution of sound
U1  - 621.381 
PY  - 1938///
CY  - London
PB  - Chapman and Hall
KW  - Public address systems
KW  - Electroacoustics
KW  - Broadcast engineering
N1  - Includes bibliographical references and index
ER  -