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_aYoung, Owen D. _9123223 |
| 245 | 1 | 3 | _aEl problema de electrificar la granja |
| 500 | _aSobretiro de: Bol. Unión Panamericana, No. 16, 1926. 12 pp. | ||
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_aElectrificación rural. _936231 |
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