What is a plane? / Douglas, Lloyd G

ISBN13: 
9780516240237
9780516239644
9780329322069
LCCN: 
2002001410
Compare Title: 
whatisaplane
Call Number: 
621.8

What is a plane?

Describes simple machines called planes or ramps and how they are used to make work easier.

What is a plane?

2002
Describes simple machines called planes or ramps and how they are used to make work easier.
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