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| 040 | _aMX-SIABUC | ||
| 020 | _a0-393-31218-6 | ||
| 082 | 0 | _a331.117 34 F655t | |
| 100 | 4 | 0 | _aFogel, Robert William |
| 245 | 0 |
_aTime on the cross: the economics of American negro slavery/ _cRobert William Fogel, Stanley L. Engerman |
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| 300 | 4 | _a306 p. \ 21 cm | |
| 500 | 4 | _aIncluye índice | |
| 650 |
_a1.Esclavitud en E.U.A _a2.Trabajo en condiciones desfavorables _a3.Trabajo de esclavos |
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| 900 | _a20010425 00:00:00 | ||
| 942 | _cIT01 | ||
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_c160393 _d160393 |
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| 264 |
_aUSA : _bNorton _c |
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_a1 _b1 _c1 |
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