PANKO, RAYMOND R. BUSINESS DATA NETWORKS AND TELECOMMUNICATIONS - 5TH ED. - Estados Unidos PEARSON EDUCATION 2005 UPPER SADDLE RIVER - 588 ISBN: 0131454498 LCCN: 84782 Subjects--Topical Terms: EMPRESAS COMERCIALES-REDES DE COMPUTADORESSISTEMA DE TRANSMISION Dewey Class. No.: 005.71