Finding the source:   A thesaurus-index to the reference collection 

 - London:   Aldwych Press,   1985 
 - xvi, 225p. 
<br/><br/><label>ISBN: </label>00-313-24094-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bibliography
<br/><br/><label>Subjects--Index Terms: </label>Information services  
<br/><br/><label>Universal Decimal Class. No.: </label>R 016:61   / M5