00263nam a2200109Ia 4500008004100000041000800041082001500049100001600064245002100080260004400101300000800145211209s1978    xx            000 0 und d  aeng  a621.81 AGA  aAGARWAL D D  aMACHINE DRAWING   aNEW DELHIbVIKAS PUBLISHING HOUSEc1978  a140