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_aAC 75 _bL52 524 |
| 100 | 1 |
_aEco, Umberto _d1932- |
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| 245 | 1 | 3 | _aLa Nueva edad media |
| 260 |
_aMadrid : _bAlianza, _c1974 |
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| 300 | _a155 p. , 18 cm. | ||
| 440 | 0 |
_aLibro de bolsillo ; _v524 |
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| 650 | 4 | _aCambio social | |
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_aManzano, Carlos, _etr. |
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