Encyclopedia of physical science and technology / 
 Physical science and technology 
editor-in-chief, Robert A. Meyers. 
 - 3rd ed. 
 - San Diego :  Academic Press,  c2002. 
 - 18 v. :  ill. ;  29 cm. 
<br/><br/> Vol. [18]: Reference. 
<br/><br/>Includes bibliographical references and indexes. 
<br/><br/><label>ISBN: </label>0122274105 (set : acidfree paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical sciences--Encyclopedias.<br/>Technology--Encyclopedias.
<br/><br/><label>Dewey Class. No.: </label>503