TY  - BOOK
AU  - RICHARDSON,E.G.
AU  - 
TI  - Sound, a Physical Text Book. 
U1  - 534/RIS 
PY  - 0000///Edward Arnold.
PY  - 1961///
CY  - London. 
KW  - Sound.
KW  - Sound
N1  - Includes index and bibliography.
ER  -