Universal decimal classification 

 - London  The Auther        1982 
 - 31p.  cm. 
 - FID pub; 483 .
<br/><br/> Contents UDC 656: transport and postal services traffic organization and control 
<br/><br/><label>Standard No.: </label>7,108 
<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, qM2 (2)