00489nam a2200169Ia 4500003000600000005001700006008004100023020001800064040002500082082001900107100002100126245007100147250001200218260002900230300002800259500003200287NORSU20240514071118.0240214s9999    xx            000 0 und d  a0-534-38317-3  aNORSU-DumcNORSU-Dum  a004.6 Sh2 2004  aShay, William A. 0aUnderstanding data communications and networkscby William A. Shay  a3rd Ed.  bThomsonc2004aAustralia  axxv, 766 pages;  23 cm.  aIncludes glossary and index