Gears
By: words by Harlan Wade ; concepts and ill. by Denis Wrigley.
Contributors: Wrigley, Denis.
Edition: Rev. ed.
Publisher: Raintree Publishers
Published: 1979
Place of publication: Milwaukee
Language: eng
Subjects: Gearing -- Juvenile literature; Gearing
Description: A simple explanation of gears and what they do.
Notes: Cataloging based on CIP information.