Pecar, Joseph A., The new McGraw-Hill telecom factbook / Joseph A. Pecar, David A. Garbin - 2nd ed. - xxiv, 823 páginas : ilustraciones Ed. anterior: The McGraw-Hill telecommunications factbook ISBN: 0071351639 Subjects--Topical Terms: Telecomunicaciones LC Class. No.: TK5101 / P39 2000 Dewey Class. No.: 384