00267nam a2200109Ia 4500008004100000041000800041082001900049100001900068245002700087260003500114300000800149211209s1979    xx            000 0 und d  aeng  a620.11 N78 SUR  aSURENDRA SINGH  aENGINEERING MATERIALS   bVIKAS PUBLISHING COMPANYc1979  a254