TY  - BOOK
AU  - Edwardson, S. M.
ED  - British Broadcasting Corporation
TI  - An instrument for measuring television signal-to-noise ratio (no.37)
U1  - 621.388 
PY  - 1961///
CY  - New York
PB  - British Broadcasting Corporation
KW  - Signals
KW  - Amplifier
ER  -