Shelly, Gary B.

Business data communications: introductory concepts and techniques / Gary B. Shelly, T. J. Cashman, Judy A. Serwatka -- Boston : Course Technology, 2001

[400p].; 25cm

ISBN:  0789559587

index 

1. Data Communications. 

I. Cashman, Thomas J.  II. Serwatka, Judy A. 

004.6 SHE