Universal decimal classification, International 

 - 4th 
 - London  British Standard House       1968 
 - 24p.  cm. 
 - FID Pub; 179 .
<br/><br/> Contents UDC 656/656.7 Transport services traffic organization and control 
<br/><br/><label>Standard No.: </label>6,414 
<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, qK82-;4 (2)