Universal decimal classification 

 - London  British Standard Institution       1974 
 - 61p.  cm. 
<br/><br/> 'Contents UDC: auxiliaries 
<br/><br/><label>Standard No.: </label>7,084 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>LIBRARY SCIENCE
<br/><br/><label>Dewey Class. No.: </label>2:51M96, L4