EEfficiency in businessEfficiency in businessde Harry Arthur HopfMateriasIndustrial efficiencyOffice managementEdiciones (2)Efficiency in business (1917)H.A. Hopf · inglésEfficiency in business (1900)H.A. Hopf · inglésMás obras de Harry Arthur HopfNNew perspectives in managementNew perspectives in management1953SSoundings in the literature of managementSoundings in the literature of managementTThe present status, responsibilities and future of the manag