01181cam a22003614a 4500 12368016 OSt 20260412143233.0 010403s2002 maua b 001 0 eng 2001089583 0672322161 alk. paper 9780672322167 (alk. paper) 12368016 DLC DLC DLC pcc TK5105 H429 2002 004.6 H.G.U 2002 21 Held, Gilbert, 1943- Understanding data communications / Gilbert Held. 7th ed. Boston : Addison-Wesley, c2002. xv, 765 p. : ill. ; 23 cm. text txt rdacontent unmediated n rdamedia volume nc rdacarrier Includes bibliographical references and index. Data transmission systems. Computer networks. 7 cbc orignew 2 epcn 20 y-gencatlg ddc BK 0 78 78 0 0 ddc 0 0 MAIN MAIN CS 2026-04-12 0 004.6 H.G.U 2002 1307 2026-04-12 14:33:00 2026-04-12 BK 0 0 ddc 0 0 MAIN MAIN CS 2026-04-12 0 004.6 H.G.U 2002 1192 2026-04-12 14:33:00 2026-04-12 BK 0 0 ddc 0 0 MAIN MAIN CS 2026-04-12 0 004.6 H.G.U 2002 1191 2026-04-12 15:07:47 2026-04-12 BK