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| 035 | _aUPN01000066443 | ||
| 100 | _aHEPBURN, Barbara | ||
| 222 | _aMICROMATH | ||
| 245 | _aCalculators and parents | ||
| 300 | _a12-13 | ||
| 362 | _a1993 9, no. 1 mar.- jun. | ||
| 653 | 0 | _aCALCULADORAS ELECTRONICAS | |
| 653 | 0 | _aENSEÑANZA | |
| 653 | 0 | _aMATEMATICA | |
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| 905 | _aArticulo | ||
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