Business data communications : introductory concepts and techniques /
Gary B. Shelly,
Business data communications : introductory concepts and techniques / by Gary B. Shelly, Thomas J. Cashman, Judy A. Serwatka - Fourth edition - xv, [500] pages : some colour, illustrations ; 28 cm - Sherly Cashman Series .
Includes bibliographical references and index
9780789568069 (paperback) 0789568063 (paperback)
Data transmission systems
HD30.335 / S54
Business data communications : introductory concepts and techniques / by Gary B. Shelly, Thomas J. Cashman, Judy A. Serwatka - Fourth edition - xv, [500] pages : some colour, illustrations ; 28 cm - Sherly Cashman Series .
Includes bibliographical references and index
9780789568069 (paperback) 0789568063 (paperback)
Data transmission systems
HD30.335 / S54