Working machines
By: John Marshall.
Series: Energy and action
Publisher: Rourke Book Co.
Published: 1995
Place of publication: Vero Beach, Fla
Language: eng
Subjects: Machinery -- Juvenile literature; Machinery; Simple machines
Description: Describes simple machines and how they work, including the inclined plane, levers, wheels and axles, the wedge, screws, and pulleys.
Notes: Includes index.