Bibliography of directories of sources of information  
/ International Federation for Documentation 
 - Hague:   International Federation for Documentation,   1960 
 - 22p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bibliography
<br/><br/><label>Subjects--Index Terms: </label>Information 
<br/><br/><label>Universal Decimal Class. No.: </label>R 016:058:002.6  / K0;1