00263nam a2200109Ia 4500008004100000041000800041082002400049100002100073245004200094260000900136300000800145211209s1978    xx            000 0 und d  aeng  a620.112 SIN N78 GUR  aGURUCHARAN SINGH  aSTRENGTH OF MATERIALS AND STRUCTURES   c1978  a864