00254nam a2200109Ia 4500100001600000654001200016245004300028260003600071082001700107300000800124546001200132  aKhurmi/R.S   aPhysics  aA text  book of  Mechanical Technology  bS. Chand & co.aNew Delhic1987  a621.402bKHU  a920  aENGLISH