GEMS leader's handbook
| Egile korporatiboa: | , |
|---|---|
| Beste egile batzuk: | |
| Formatua: | Liburua |
| Hizkuntza: | English |
| Argitaratua: |
Berkeley, CA
Great Explorations in Math and Science (GEMS), Lawrence Hall of Science, University of California
1997, c1988.
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| Gaiak: |