00901nam0-22003011i-450-99000693629040332120010719000693629FED01000693629(Aleph)000693629FED0100069362920010719d1959----km-y0itay50------baengUSy-------001yyBasic Facts on Productivity ChangeSolomon FabricantNew YorkNational Bureau of Economic Research1959VII, 49 p.24 cmPublications of the National bureau of economic researchOccasional Paper6333020itaFabricant,Solomon109600ITUNINARICAUNIMARCBK990006936290403321XV C 64 (63)56712FGBCFGBCBasic Facts on Productivity Change628374UNINA