00345nam a2200133Ia 4500008004100000020001500041041001200056082001600068100001600084245005500100260003400155300001000189650001200199221030s9999    xx            000 0 und d  a8187224215  aEnglish  a105.23bGup  aS. K. Gupta 0aEngineering Physics Vol III Opticscby S. K. Gupta  bKrishna Pub.aNew Delhic2001  a3.348  aPhysics