| 000 | 00502 a2200265 4500 | ||
|---|---|---|---|
| 001 | 15173 | ||
| 020 | _a28 | ||
| 041 | _aeng | ||
| 080 | _a51 Pol | ||
| 245 | _aMathematical discovery. | ||
| 250 | _a | ||
| 260 | _a | ||
| 260 | _bJohn Wiley, New York, | ||
| 260 | _c1981 | ||
| 300 | _axxv,220. | ||
| 300 | _c | ||
| 490 | _a | ||
| 100 | _aPOLYA, G.\ | ||
| 700 | _a | ||
| 650 | _a | ||
| 650 | _aMathematics-Problems, exercises, etc. | ||
| 650 | _aProblem solving | ||
| 942 | _cBK | ||
| 942 | _2UDC | ||
| 999 |
_c17369 _d17369 |
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