| 000 | 00416nam a22001577i 4500 | ||
|---|---|---|---|
| 001 | SXC022170 | ||
| 005 | 20260819093720.0 | ||
| 008 | 260101s1962 ii 000 0 eng d | ||
| 082 |
_a507 UNE2 _222 |
||
| 245 | 1 | 0 |
_aUNESCO source book for science teaching / _cs.n. |
| 250 | _a2 ed. | ||
| 260 |
_a _bUNESCO, _c1962 |
||
| 300 |
_ap. ; _c22 cm. |
||
| 650 | 0 | _aPure sciences - Study & teaching | |
| 999 |
_c17345 _d17345 |
||