Machines at work
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Word Count
7,750 words, Guess
Page Count
31 pages
Identifiers
- Internet Archivemachinesatwork0000ward
- ISBN-100531142434
- ISBN-139780531142431
- Goodreads3781055
- Library of Congress Control Number92015692
and 2 more
- OCLC Control Number25916914
- Open LibraryOL1713514M
Classifications
- DDC621.8
- LCCTJ147 .W37 1993
Description
An introduction to machines, from levers and pulleys to compound machinery, which includes instructions for activities and projects to illustrate the principles.
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