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How Machines Work
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Hardcover
from Edc Pub (June 1, 1981)
9780860200567 | details & prices | List price $8.95
About: A simple introduction to the world of machines and motors, looking inside the machines to illustrate how they work and what they do.
About: A simple introduction to the world of machines and motors, looking inside the machines to illustrate how they work and what they do.