TY  - BOOK
AU  - FitzGerald,Jerry
TI  - Business data communications: basic concepts, security and design 
SN  - 0471508772
PY  - 1990///
CY  - New York
PB  - John Wiley & Sons
KW  - Data transmission systems
KW  - Computer networks
KW  - Office practice
KW  - Automation
ER  -