00808nam0-2200277---450-99000972039040332120130422130226.0000972039FED01000972039(Aleph)000972039FED0100097203920130422d1975----km-y0itay50------baengUS--------001yyHuman capitala theoretical and empirical analysis, with special reference to education second editionby Gary S. BeckerNew YorkColumbia university1975xvii, 268 p.22 cmBecker,Gary S.118957ITUNINARICAUNIMARCBK990009720390403321I2.717091DECTSDECTSHuman capital14917UNINA