TY  - GEN
TI  - TELEVISION FIELD TRIALS OF 405-LINE AND 625-LINE SYSTEMS IN THE UHF AND VHF BANDS 1957-1958
U1  - 621.388 
PY  - 1960///
CY  - London
PB  - B. B. C.
KW  - Television Broadcasting -- Great Britain
KW  - Television -- Transmitters And Transmission
ER  -