Classification, Class Z, bibliography and library science / 
Library of Congress 
 - 5 ed. 
 - vii, 354 p. :  il. ;  26 cm. 
<br/><br/><label>ISBN: </label>0844403407 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CLASIFICACION--LIBROS--BIBLIOGRAFIAS<br/>LIBROS--CLASIFICACION
<br/><br/><label>Dewey Class. No.: </label>025.4602  / L52 1980