UNIVERSAL decimal classification 

 - pocket ed. 
 - [London]  British standards institution  0 
 - 288p. 
<br/><br/><label>ISBN: </label>580330451 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classification
<br/><br/><label>Dewey Class. No.: </label>25.432  / UNI