00714nam a2200193 a 450000100060000000300080000600500170001400800410003103500190007204000260009104100080011708200270012510000180015224502240017026000470039430000290044150000200047065000300049061674BD-RjUL20211209081006.0170121s1939    e             001 0 eng d  a(BD-RjUL)61798  aBD-RjULbengcBD-RjUL  aeng  a650.0212bGOU 19392231 aGourlay, H. R10aUseful graphs and charts :b being an explanation of the principles of business graphics and an outline of the nature, construction and interpretation of graphs and charts as an aid to business management /cH R Gourlay  aSydney :bRydge's Business Journal,cc1939  a149 p. :bill. ;c23 cm.  aIncludes index.  aBusinessxGraphic methods