Classification decimale universell 

 -  1929 
 - Publication de l institut international de bibliography; 151 .
<br/><br/><label>Standard No.: </label>9,425 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>LIBRARY SCIENCE
<br/><br/><label>Dewey Class. No.: </label>2:51qN05, 122F9.1-.2 (2D)