Library of Congress, Washington. <br/><br/>
Library of congress subject headings /  
by Barbara B Tillett. 
 - 33rd ed /  
 - Washington :   Library of Congress ,   2011 
 - 6 vols ;  
<br/><br/><label>ISBN: </label>1048-9711 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library, Subject Headings
<br/><br/><label>Dewey Class. No.: </label>2:51N  / P1.6