Library of congress subject headings 
Prepared by the Cataloging policy and support office, Library service. 
 - Washington  Library of Congress.  [n.d.] 
 - 5v. (various pagination), 28cm. 
<br/><br/> Content: v.1 (A-C) - v.2 (D-H) - v.3 (I-M) - v.4 (N-R) - v.5 (S-Z). 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Authority Files Subject Cataloguing  Form Headings. 
<br/><br/><label>Dewey Class. No.: </label>025.49  / L58L