Simple machines : inclined plane, pulleys,levers,gears and hydraulics / [kasetvideo]
20
| Format: | |
|---|---|
| Published: |
New South Wales, Aust : Classroom Video,
1996
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| Subjects: |
20
| Format: | |
|---|---|
| Published: |
New South Wales, Aust : Classroom Video,
1996
|
| Subjects: |