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Held, Gilbert, 4 0 1943-

Understanding data communications. 6 6 - Fifth edition / revised by Gilbert Held. - - xv, 504 pages : illustrations 24 cm. - - - - - . - . - 0 . - . - 0 .

Previous eds. written by George E. Friend ... et al.

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



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ISBN: 672309343

ISSN: 2 = =

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LCCN: 96068961

Nat. Bib. No.: 2

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Subjects--Topical Terms:
Data transmission systems.;Computer networks. --------20--

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LC Class. No.: TK5105 / .H429 19962

Dewey Class. No.: 4.6 / 221

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