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| 008 | 981208c19741973xxu 00 0 eng | ||
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| 100 | 1 | _aGattegno, Caleb | |
| 245 | 1 | 4 |
_aThe common sense of teaching mathematics / _cby Caleb Gattegno |
| 260 |
_aEducational Solutions : _bNew York, _c1974 |
||
| 300 |
_aix, 129 p. : _billus. ; _c22 cm. |
||
| 504 | _aBibliography: p. 129 | ||
| 650 | 0 |
_aMathematics _xStudy and teaching (Elementary) |
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_a.b10394230 _b2021-05-28 _c2019-11-12 |
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