Rockport Public Library
621.8
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Label
621.8
Code
621.8
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Machines go to work in the city, William Low
Working with machines, Sonya Newland ; [illustrator: Diego Vaisberg]
I like machines, ... what jobs are there?, by Robin Pridy ; illustrated by Elise Gaignet
Simple machines, wheels, levers, and pulleys, by David A. Adler ; illustrated by Anna Raff
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