| 000 | 00481nam a2200157Ia 4500 | ||
|---|---|---|---|
| 008 | 131223s9999 xx 000 0 und d | ||
| 040 | _aISI KOLKATA | ||
| 041 | _aEnglish | ||
| 082 |
_a510.7 _bN277 |
||
| 110 | _aNational Council of Teachers of Mathematics | ||
| 245 | _aLearning of mathematics its theory and practice : yearbook | ||
| 260 |
_aN Y _bColumbia University _c1961 |
||
| 440 | _aNational Council of Teachers of Mathematics, 21 | ||
| 650 | _aMathematics | ||
| 942 | _cBK | ||
| 999 |
_c47667 _d47667 |
||