00277nam a2200121Ia 4500100001700000490000600017654003400023245003400057260003500091082001000126300000700136546001200143  aOstrowsky/O   vI  aEngg. Drawing And Technicians  aEngg. Drawing And Technicians  bEdward  Arnold .aLondonc1979  a604.2  a94  aENGLISH