TY  - BOOK
TI  - Sound
SN  - 1-919736-04-2
AV  - P 534.2 SOU 2000
PY  - 2000///
CY  - Johannesburg, South Africa
PB  - The Chart Studio (Pty) Ltd
KW  - Sound
N1  - Sources of sound & etc
N2  - Sound is a form of energy which makes it possible to hear speech, noise and music
ER  -