00413    a2200145   4500020001500000082001600015100003000031245005000061250000900111260004500120300002300165650004400188650001600232700001900248  a8131700887  a621.38bPFE  aPfeiffer, William Sanborn  aTechnical communicationba practical approach  a6th   aNew DelhibPearson Educationc2007g2007  axviii, 693p.c26cm  aELECTRONICS, COMMUNICATIONS ENGINEERING  aENGINEERING  aPadmaja, T.V.S