| 000 | 00433 a2200145 4500 | ||
|---|---|---|---|
| 001 | 7942 | ||
| 011 | _a0228-0671 | ||
| 090 | _a7942 | ||
| 100 | _a20170516 frey50 | ||
| 101 | _aeng | ||
| 102 | _aCA | ||
| 200 |
_aFor the Learning of Mathematics _eAn International Journal of Mathematics Education _fEdited by David Wheeler |
||
| 207 | _aVol. 11 Num. 3 - November 1991 | ||
| 210 |
_aVancouver B.C _cFLM Publishing Association |
||
| 215 | _d28 cm. | ||
| 099 | _tSER | ||