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

 - London:   Aldwych Press,   1981 
 - xvii, 545p. 
 - Studies in library science  5 .
<br/><br/><label>ISBN: </label>0861720245 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library science
<br/><br/><label>Subjects--Index Terms: </label>Reference collection 
<br/><br/><label>Universal Decimal Class. No.: </label>D 03(026):025.48   / M1