Basic machines and how they work 

 - Mineola, NY:  Dover Publications,  1997 
 - viii, 161 p. illus. 24 cm. 
<br/><br/><label>ISBN: </label>9780486217093 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Machinery
<br/><br/><label>Dewey Class. No.: </label>621.8 NAV