TY  - BOOK
AU  - Fitzgerald,Jerry.
TI  - Business data communications
SN  - 0471548456
AV  - TK 5105 .F577 1993 
PY  - 1993///
CY  - Newyork
PB  - John Wiley & sons
KW  - Data transmission systems
KW  - computer netwoks
KW  - office practice-automation
N1  - Includes index
ER  -