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_a331 _bA86 |
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_aAspects of labor economics _b: a conference of the Universities National Bureau Committee for Economic Research |
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| 260 |
_aPrinceton : _bUniversity Press, _c1962 |
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| 300 | _a349 p | ||
| 590 |
_aBATCH-UPD _b10 _c20130110 _lUCH01 _h1938 |
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_aCONVERSION _b10 _c20130109 _lUCH01 _h1313 |
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| 650 | 1 | 4 | _aTrabajo y trabajadores. |
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