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| 037 | _aTextual | ||
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_aeng _2eng |
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_a510.7, UNE _qFEDL |
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| 100 | _aMorris Robert | ||
| 245 | 0 | _aStudies in mathematics education. Vol 1 | |
| 260 |
_aParis, France _bUnited Nations Educational, Scientific and Cultural Organization _c1980 |
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| 300 | _a129p. | ||
| 942 |
_cTEXL _h510.7, UNE |
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