Cataloging rules of the American Library Association and the Library of Congress:   Additions and changes, 1949-1958 
/ Library of Congress 
 - Washington:   Library of Congress,   1959 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library science
<br/><br/><label>Subjects--Index Terms: </label>Cataloging rules 
<br/><br/><label>Universal Decimal Class. No.: </label>D 025.31   / J9;2