00486nam a2200169Ia 4500003000400000005001700004008004100021040002000062041000800082082001900090100001900109245005300128264005900181300001500240650003400255650002700289AIT20260514111717.0221231s9999    xx            000 0 und d  aATRIAbengcAIT  aeng  a621.38 DAS222  aDas J.eAuthor 0aPrincipal of digital communication /cby Das J. 34aNew Delhi :bNew Age International Pvt. Ltd.,c©2000.  aXV, 645 p.  aElectronics and Communication  aDigital  Communication