Williams, John.

Projects with Machines / John Williams ; illustrated by Malcolm S. Walker. - Milwaukee, Wis. : Gareth Stevens Children's Books, 1992. - p. cm. - Simple science projects .

Rev. ed. of: Machines. 1990.

Includes bibliographical references and index.

Provides instructions for making and using a variety of machines, including levers, diggers, cranes, and pulleys.

ISBN: 0836807693

LCCN: 91050547 /AC

Subjects--Topical Terms:
Machinery
Machinery
Experiments.

LC Class. No.: TJ147 / .W52 1992

Dewey Class. No.: 621.8/078