00465nam a2200145Ia 4500008004100000100002200041245003000063260002100093260000900114300000800123650004000131942001000171952012300181999001500304221231s9999    xx            000 0 und d  aCalwani C S94700 0aIdentification techniques  bTata McGraw-Hill  c1972  a320  aElectronics and Communication94701  cBE_BK  00104070aAITbAITd2015-06-24l0pBE09580r2022-12-31w2022-12-31yBE_BKzElectronics and CommunicationB1900-01-01  c3657d3657