00289nam a2200121Ia 4500008004100000100001700041245003500058260003100093300000900124650001200133942000700145999001500152190216s9999||||xx |||||||||||||| ||und||  aSrivasta B N 0aEssential Of Quantum Mechanics  bPragathi   Prakashanc1985  a236p  aPhysics  cBK  c2403d2403