00397nam a2200157Ia 4500008004100000020001800041082001700059100001400076245004700090250000800137260002500145300001300170500002500183650001600208700001500224230524s9999    xx            000 0 und d  a9780070634541  a621.382bSIN  aR.P.Singh 0aCommunication Systems (Analog and Digital)  a1ST  aNEW DELHIbTMHc2005  aXIII;490  aQuantity Number:  52  aElectronics  a S.D.Sapre