Universal decimal classification 

 - 4th 
 - London  British Standard Institution       1973 
 - 25p.  cm. 
<br/><br/> Contents Materials testing, commercial materials power station, economics of energy 
<br/><br/><label>Standard No.: </label>7,081 
<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, qL3 (2D)