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Understanding data communications /

Held, Gilbert, 1943-

Understanding data communications / Gilbert Held - 5th ed. - New Delhi : Techmedia, c1996. - xv, 504 p. : ill. ; 24 cm.

Includes bibliographical references (p. [477]-478) and index.

8176350664


Data transmission systems.
Computer networks.

004.6 / GIU