TY  - BOOK
AU  - Richardson,Edward Gick
TI  - Sound: a physical text-book 
U1  - 534 
PY  - 1963///
CY  - London
PB  - The English Languages Book Society & Edward Arnold (Publishers)
KW  - Sound
KW  - Ultrasomics
N1  - "First published, 1927 .. Third edition, 1940."; Includes bibliographical references and index
ER  -