Earth, moon and stars teacher's guide grades 5-9
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| Awdur Corfforaethol: | |
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Berkeley, CA
Great Explorations in Math and Science (GEMS), Lawrence Hall of Science, 1998
c1986.
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| Pynciau: |