000 | 00392cam a22001452 4500 | ||
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001 | 0000035013 | ||
005 | 20170918153400.0 | ||
008 | 101119s xx 000 0 eng d | ||
245 | 1 | 0 | _aInstructional aids in mathematics : |
250 | _a ed. | ||
260 |
_aWashington : _bNational Council of Teachers of Mathematics, _c1973. |
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300 | _a442 p. | ||
650 | 0 | _aMathematics. | |
908 | _a101119 | ||
999 |
_c17047 _d17047 |