| 000 | 00426nam a2200169Ia 4500 | ||
|---|---|---|---|
| 999 |
_c38966 _d38966 |
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| 005 | 20220125133148.0 | ||
| 008 | 180712s9999 xx 000 0 und d | ||
| 020 | _a9231017799 | ||
| 041 | _aEN | ||
| 082 |
_a510.7 _bUNE _223 |
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| 100 | _aMorris, Robert | ||
| 245 |
_aSTUDIES in mathematics education _c/edited by Robert Morris |
||
| 260 |
_aParis _bUNESCO _c1980 |
||
| 300 | _a(v.1-ix, 129) p. | ||
| 509 | _aNS | ||
| 942 | _cS | ||