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.
5
5
672309343
2 = =
96068961
2
2 --0------
6 --0-- 2 --------
0 2 --
--20------
Data transmission systems.;Computer networks. --------20--
--------20--
----2
TK5105 / .H429 19962
4.6 / 221
/
/
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.
5
5
672309343
2 = =
96068961
2
2 --0------
6 --0-- 2 --------
0 2 --
--20------
Data transmission systems.;Computer networks. --------20--
--------20--
----2
TK5105 / .H429 19962
4.6 / 221
/
/