Universal decimal classification 

 - 2nd 
 - London  British Standard Institution       1977 
 - 43p.  cm. 
<br/><br/> Contents UDC Astrponomy geodesy 
<br/><br/><label>Standard No.: </label>7,104 
<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, qL7 (2D)