Tewksbury Public Library
621.8/11
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621.8/11
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621.8/11
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Wheels and axles, by Michael Dahl
Inclined planes, by Michael S. Dahl
What do wheels do all day?, April Jones Prince ; illustrated by Giles Laroche
Wheels, pulleys & levers, Mick Seller
Lifting by levers, Andrew Dunn ; illustrated by Ed Carr
Pulleys, by Michael S. Dahl
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