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_aGerard, Ralph Waldo. _947701 |
| 245 | _aComputers and education | ||
| 260 |
_aNew York : _bMcGraw-Hill, _c1967 |
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| 300 |
_a307 p. _b: ilus. |
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| 590 |
_aBATCH-UPD _b10 _c20130109 _lUCH01 _h2348 |
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_aBATCH-UPD _b10 _c20130110 _lUCH01 _h1802 |
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| 590 |
_aCONVERSION _b10 _c20130109 _lUCH01 _h1308 |
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| 650 | 1 | 4 |
_aEducación. _935409 |
| 650 | 1 | 4 |
_aProcesamiento automático de datos en educación. _991774 |
| 901 | _aBK | ||
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