| 000 | 00447nam a22001577a 4500 | ||
|---|---|---|---|
| 008 | 230420b |||||||| |||| 00| 0 eng d | ||
| 040 |
_aNational Science Library _cNational Science Library |
||
| 080 |
_a5/6 _bK9 |
||
| 100 | 1 |
_aStevens, R A _96949 |
|
| 245 | _aOut-of-school science activities for young people | ||
| 260 |
_aSwitzerland: _bUNESCO, _c1969 |
||
| 300 | _a129p. | ||
| 650 | _aScience | ||
| 653 | _aScience fairs | ||
| 942 |
_2udc _cBK |
||
| 999 |
_c21339 _d21339 |
||