TY  - GEN
AU  - Shay,William A
TI  - Understanding Data Communications and Networks
SN  - 9812400508 (10)
U1  - 004.6 
PY  - 1999///
CY  - Pacific Grove
PB  - Brooks/Cole
KW  - Computer Networks
KW  - Data Communication
KW  - Data Transmission Systems
ER  -