00346nam a2200133Ia 4500008004100000041000800041082001700049100001500066245005500081260002200136300002300158365001600181700001500197230719s9999    xx            000 0 und d  aeng  a621.382bFLO  aFlood J.E.  aTelecommunications Switching, Traffic And Networks  bPearson Education  dRef 1668 E (52712)  cRs.b122.50  aFlood J.E.