AU  - LANGLEY,GRAHAM
TI  - TELECOMMUNICATIONS PRIMER
SN  - 0273024787
U1  - 384/LAN 
PY  - 1986///
CY  - LONDON
PB  - PITMAN PUBLISHING
KW  - TELECOMMUNICATION
KW  - PRINCIPLES
KW  - FUNCAMENTALS
KW  - SWITCHING
KW  - SIGNALLING
KW  - CABLE, RADIO AND TRANSMISSION
KW  - MAINTENANCE
KW  - OPERATION
KW  - TELEVISION
KW  - DIGITAL SERVICES
KW  - CABLE TELEVISION
KW  - CREDIT CARDSSATELLITE BROADCASTING
ER  -