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| 049 | _aCE | ||
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_aHX44 _bL4.6 |
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| 100 | 1 |
_aLenin, Vladimir Ilich, _d1870-1924 |
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_a¿Cómo debe organizarse la emulación? / _cVladimir Ilich Lenin. |
| 260 |
_aMoscú : _bProgreso, _c1920. |
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| 300 | _a45 p. | ||
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_aSocialismo _97360 |
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| 905 | _aLibro | ||
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_c8972 _d8972 |
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