00534nam 2275948 450000100060000000300230000600500090002900800410003808200100007907200300008902000220011910000200014126000330016125000060019424500360020065000300023665000300026665000460029675948StarLibrary Marc Built20180430201711 ||||| |||||||||||amh  a004.6 adata communication basics a978-0-13-504583-1 aDouglas E.comer bPEARSON PRENTICE HALL c2009 a6 aComputer networks and internets adata communication basics aintroduction and overview apacket switching and network technologies