00325nam a2200133Ia 4500008004100000020001500041041001200056082001100068100001600079245004200095260003100137300000800168650001500176221030s9999    xx            000 0 und d  a9380097329  aEnglish  a105.23  aS. K. Singh 0aEngineering Mechanicscby S. K. Singh  bVayu Pub.aNew Delhic2009  a522  aMechanical