00695nam a2200169Ia 4500008004100000020001800041041000800059082001700067100001200084245019000096250000600286260005100292300001200343650002000355999001900375952013100394210716s2013    xx            000 0 und d  a9788122434118  aeng  a621.382 DASJ  aDas, J.  aReview of digital communication: state of the art in digital signalling digital switching and data networks.bState of the art in digital signalling digital switching and data networks.  a2  aNew DelhibNew Age International Pvt Ltdc2013  axiv,563  aDigital Systems  c197380d197380  001040708MCAaAIMITbAIMITeKnowledge Worldg899.00l0o621.382 DASJpMCA16910r2025-07-21 00:00:00v674.25w2021-07-16yBK