00433nam a2200133Ia 4500100002200000942000700022654002600029245003400055260003600089300000800125546001200133999001700145952013700162  aPeebles peyton Z   cBK  acommunication systems  aDigital communication systems  bprentice hallaNew Jerseyc1987  a432  aENGLISH  c24502d24502  001040708CRCaCRCEbCRCEd2023-03-17eProgressive Booksg540.71i2051 dt 17.08.92l0o p3787r2023-03-17v540.71w1992-08-17yBK