Subject cataloging manual :  subject headings / 
Libraryk of Congress. 
 - 5th ed., 1996, 1997, 2007, 2008. 
 - Washington, D.C. :  Library of Congress,  1996. 
 - 4 v. 
<br/><br/><label>ISBN: </label>0844409065 9780844409061 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CATALOGACION POR MATERIAS<br/>ENCABEZAMIENTOS DE MATERIA
<br/><br/><label>Dewey Class. No.: </label>025.47  / L697 1996