00273nam a2200109Ia 4500008004100000082001600041100001500057245003600072250000900108260002600117650002000143220204s9999    xx            000 0 und d  a62:744bBHA  aBhatt, N D 0aGeometrical and machine drawing  aEd.5  aIndiabCharotarc1975  aMachine drawing