TY  - BOOK
AU  - Held, Gilbert
TI  - Understanding data communications
SN  - 0672309343 (pbk)
U1  - 004.6 
PY  - 1996///
CY  - Indianapolis
PB  - Sams Pub
KW  - Data transmission systems
KW  - Computer networks
KW  - Data communication
KW  - Digital transmission
KW  - Satellite communication
KW  - Transmission
KW  - Channels
KW  - LAN
KW  - FC
ER  -