Business data communications : introductory concepts and techniques /
Shelly, Gary B.
Business data communications : introductory concepts and techniques / Gary B. Shelly, Thomas J. Cashman and Judy A. Serwatka. - 4th ed. - Cambridge, Mass. ; London : Course Technology, 2004. - xv, [various]p. : col. ill. - Shelly Cashman series. Introductory .
Previous ed.: 2001.
0789568063
GBA3-U0966
Data transmission systems.
Computer networks.
Data transmission systems.
Computer networks.
Business data communications : introductory concepts and techniques / Gary B. Shelly, Thomas J. Cashman and Judy A. Serwatka. - 4th ed. - Cambridge, Mass. ; London : Course Technology, 2004. - xv, [various]p. : col. ill. - Shelly Cashman series. Introductory .
Previous ed.: 2001.
0789568063
GBA3-U0966
Data transmission systems.
Computer networks.
Data transmission systems.
Computer networks.