TY  - GEN
AU  - Fitzgerald, Jerry.
TI  - Business data communications : basic concepts, security, and design
AV  - TK5105 Fit.
PY  - 1984///
PB  - J. Wiley
KW  - Data transmission systems
KW  - Computer networks
KW  - Office practice - Automation
N1  - 8301
ER  -