00342nam a2200145Ia 4500008004100000020000800041040003000049082001300079100002000092245001800112260002700130300001100157650001200168700001600180190302s9999||||xx |||||||||||||| ||und||  c435  aKharagpur College Library  a537bCHA  aD Chattopadhyay  aTapgatitattba  bCentralaKolkatac1990  a700 p.  aPhysics  aP C Rakshit