Technology / 
World Book, Inc. 
 - Revised edition. 
 - Chicago, IL :   World Book, a Scott Fetzer Company,   2015. 
 - 352 pages :  colour illustrations ;   29 cm. 
 - World book discovery science encyclopedia .
<br/><br/> <br/>Includes index. 
<br/><br/><label>ISBN: </label>9780716675242 (hardback) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology--Juvenile--Encyclopedias
<br/><br/><label>Dewey Class. No.: </label>R J 603 WORL