TY  - BOOK
AU  -  Alkin,Glyn
TI  -  Sound in educational television
U1  -  P 534.20028 ALK 
PY  - 1968///
CY  -  London : 
PB  -  Centre for Educational Television, 
KW  -  Sound
KW  -  Apparatus
KW  -  Microphone
KW  -  Electro-acoustics
KW  -  Television
KW  -  Transmission
ER  -