| 000 | 00318nam a2200109 4500 | ||
|---|---|---|---|
| 008 | 230707b |||||||| |||| 00| 0 eng d | ||
| 040 |
_aNational Science Library _cNational Science Library |
||
| 245 | _aUnesco source book for science teaching | ||
| 260 |
_aFrance: _bUNESCO, _c1962 |
||
| 300 | _a250p. | ||
| 942 |
_2udc _cBK |
||
| 999 |
_c50574 _d50574 |
||