643<br/>HOW<br/><br/>
3484<br/><br/>
HOW THINGS WORK  : THE UNIVERSAL ENCYCLOPEDIA OF MACHINES 

. – London :  HARPER COLLINS PUBLISHERS.
<br/><br/>590 p. 
<br/><br/>ISBN 0-586-08095-3 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>HOME MANAGEMENT
<br/><br/><label>Dewey Class. No.: </label>643  / HOW