| 000 | 00340nam a2200121Ia 4500 | ||
|---|---|---|---|
| 008 | 220201s1981 xx 000 0 eng d | ||
| 082 | _a510.7St | ||
| 245 | 0 | _aStudies in mathematics education vol.2 /edited by Robert Morris. | |
| 260 |
_aParis _bUNESCO _c1981 |
||
| 440 | _avol.2 | ||
| 650 | _aMATHEMATICS - Study and teaching. | ||
| 942 |
_2ddc _cMON |
||
| 999 |
_c74 _d74 |
||