TY  - BOOK
AU  - McLachlan,N.W.
TI  - Loud speakers : : theory, performance, testing, and design 
U1  - 621.3818 
PY  - 1960///
CY  - New York
PB  - Dover Publications
KW  - Loudspeakers
N1  - Includes index; Bibliography: p. [386]-393
ER  -