British Standards Institution <br/><br/>
Universal Decimal Classification. (V 

 - 4th Ed 
 - London  British Standards Institution  1943 
 - 103p 
 -  Vol 2, Part 1 .
<br/><br/>British Standards Institution: Universal Decimal Classification. (Vol 2, Part 1).  (4th Ed)  London.  British Standards Institution, 1943.--(025.45BRI)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>25.45  / UDC