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1
Business data communications : basic concepts, security, and design / Jerry FitzGerald
New York : Wiley, c1984
xx, 502 p. : ill. ; 25 cm.
2
Business data communications : introductory concepts and techniques / Gary B. Shelly, Thomas J. Cashman, Judy A. Serwatka.
Cambridge, Mass. : Course Technology, 1998.
1v. : ill. (some col.) ; 28 cm.
3
Data communications software design / Malcolm G. Lane.
Boston : Boyd & Fraser Pub. Co., c1985
xx, 393 p. : ill. ; 25 cm.