01071nam0-22003371i-450-99000698494040332120040604155727.0000698494FED01000698494(Aleph)000698494FED0100069849420011026d1967----km-y0itay50------baengUSy-------001yyProductivity differences within the service sectorVictor R. Fuchs, Jean Alexander WilburnNew YorkNational Bureau of Economic Research1967XIII, 109 p.24 cmOccasional paperNational bureau of economic research102331.11820itaFuchs,Victor R.<1924- >46998Wilburn,Jean Alexander257025ITUNINARICAUNIMARCBK990006984940403321H/2.229 FUC/671676/ISESXV C 64 (102)82582FGBCFGBCSESProductivity differences within the service sector700993UNINA