Business data communications :
Fitzgerald,Jerry.
Business data communications : basic concepts,security and design/ - 4th ed. - Newyork: John Wiley & sons, 1993. - xxv,722 [52] p.: ill.; 24 cm.
Includes index.
0471548456
Data transmission systems.
computer netwoks.
office practice-automation.
TK 5105 .F577 1993
Business data communications : basic concepts,security and design/ - 4th ed. - Newyork: John Wiley & sons, 1993. - xxv,722 [52] p.: ill.; 24 cm.
Includes index.
0471548456
Data transmission systems.
computer netwoks.
office practice-automation.
TK 5105 .F577 1993