Simple machines made simple [electronic resource] / Ralph E. St. Andre.
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Language: | English |
Published: |
Englewood, Colo. :
Teacher Ideas Press,
1993.
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Subjects: | |
Online Access: | |
Format: | Electronic eBook |
Note: | Includes index. |
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ISBN: | 9780313080166 (online) 9780585122892 (online) 9781282429796 (online) |