00305nam a2200121Ia 4500008004100000041000800041082001400049100001300063245003600076250001300112260004600125650001200171230711s9999||||xx |||||||||||||| ||und||  aENG  a624bGU-V  aGupta,RC 0aViva -voice in advanced Physics  a1swt Ed.  c1988aNew DelhibPragati Parkashan Meerut  aPhysics