00894nam0-22003371i-450-990003150010403321155786-319-9000315001FED01000315001(Aleph)000315001FED0100031500120000920d1993----km-y0itay50------baitaITOrigins of Increasing ReturnsTheodore W. Schultz.OxfordCambridgeMass.BSSil Blackwell1993.IX, 314 p.23 cmProduttivitàRisorse naturaliRisorse umaneG/2.0H/1.10Schultz,Theodore W.ITUNINARICAUNIMARCBK990003150010403321C/1 SCH/9314302SESSESOrigins of Increasing Returns456393UNINAING01