Early inventions
By: Julie Haydon
Edition: US ed.
Series: Rigby focus. Early fluency; Rigby focus
Publisher: Rigby
Published: 2002
Place of publication: Barrington, Ill
Language: eng
Number of pages: 24
ISBN-13: 9780757827112
Subjects: Inventions; Juvenile literature; History
Notes: Includes index.
Table of contents: title: Inventions; title: Stone tools; title: The plow; title: The wheel; title: Writing; title: Telling the time; title: The compass; title: Then and now.