TY  - BOOK
AU  - Martin,James
AU  - Leben,Joe
TI  - Data communication technology
SN  - 013197484X
U1  - TK/5105 
PY  - 1988///
CY  - Englewood Cliffs, New Jersey
PB  - Prentice-Hall
KW  - Data transmission systems.
KW  - Information networks
ER  -