How the lever changed the world
By: by Steven Otfinoski ; illustrated by Nathan Y. Jarvis
Contributors: Jarvis, Nathan Y.; McGraw-Hill Companies. McGraw-Hill School Division
Publisher: McGraw-Hill School Division
Published: 1994
Place of publication: New York
Language: eng
Number of pages: 16
ISBN-13: 9780022785444
Subjects: Levers; Juvenile literature
Notes: "Leveled books, science"--Cover.