| 000 | 00411nam a22001577a 4500 | ||
|---|---|---|---|
| 003 | OSt | ||
| 005 | 20130103125147.0 | ||
| 008 | 130103b xxu||||| |||| 00| 0 eng d | ||
| 082 | _a511 DEV | ||
| 100 | _aDeVault, M. Vere. | ||
| 245 | _a Mathematics learning systems : | ||
| 260 |
_aCanada : _bUniversity of Wisconsin, _c1974. |
||
| 300 |
_a64 p. _bill. _c27.5 cm. |
||
| 700 | _aFrehmeyer, Helen. | ||
| 942 |
_2ddc _cBK |
||
| 999 |
_c6033 _d6033 |
||