00375nam a2200133Ia 4500008004100000041000800041082001800049100001400067245004600081250001400127260005600141650002800197700001600225230711s9999||||xx |||||||||||||| ||und||  aENG  a621.382bSA-C  aSapre,S D 0aCommunication system : analog and digital  a1st . Ed.  c2003aNew DelhibTata McGraw Hill Education Limited  aElectronics Engineering  aR. P. Singh