McGraw-Hill encyclopedia of science & technology. 

 - New York  McGraw-Hill  2007. 
 - 20v.  ill.  28cm 
<br/><br/><label>ISBN: </label>9780071441438  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Encyclopedias<br/>Technology--Encyclopedias
<br/><br/><label>Dewey Class. No.: </label>503 MCG 2007