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| 008 | 110215s1949 a gr 000 0 spa u | ||
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_aUGC _cUGC |
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| 041 | 0 | _aspa | |
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_218 _a510 |
| 245 | 1 | 0 | _aMathematics at work |
| 250 | _a1a ed. | ||
| 260 |
_aNew York _bThe Industrial Press _c1949 |
||
| 650 | 1 | 4 | _aMatemáticas |
| 700 | 1 | _aHorton, Holbrook L. | |
| 942 |
_2ddc _h510 _cBK |
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| 999 |
_c7663 _d7663 |
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| 005 | 20190814130904.0 | ||