| 000 | 00431nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 230627s9999 xx 000 0 und d | ||
| 050 | _aPAM QA135.5.A825 | ||
| 245 | 4 | _aThe development of mathematical activity in children: the place of developement in this development | |
| 260 | _bAssociation of Teachers of Mathematics | ||
| 260 | _c1966 | ||
| 300 | _avii,80p. | ||
| 300 | _bill. | ||
| 300 | _c25cm. | ||
| 650 | _aMathematics | ||
| 999 |
_c124579 _d124579 |
||