| 000 | 00380 a2200145 4500 | ||
|---|---|---|---|
| 082 |
_a372.72044 _bSTC |
||
| 100 |
_aStern, Catherine _956680 |
||
| 245 |
_aChildren discover arithmetic _b: an introduction to structural arithmetic |
||
| 260 |
_aLondon: _bGeorge. G. Harrap, _c1953. |
||
| 300 | _a295p. | ||
| 500 | _aHB | ||
| 546 | _aEng | ||
| 650 |
_aArithmetic _947008 |
||
| 942 | _cBK | ||
| 999 |
_c57788 _d57788 |
||