00317nam a2200133Ia 4500008004100000020001500041041001200056082001100068100001700079245003100096260003600127300000800163650001200171221030s9999    xx            000 0 und d  a8121905990  aEnglish  a105.23  aD. S. Mathur 0aMechanicscby D. S. Mathur  bS. Chand & Co.aNew Delhic2007  a818  aPhysics