00277nam a2200121Ia 4500008004100000041001200041082001100053100001500064245004900079260000600128650000600134700001500140221030s9999    xx            000 0 und d  aEnglish  a105.23  aH. S. Hans 0aPhysics- Mechnicscby H. S. Hans, S. P. Puri  c0  aB  aS. P. Puri