British Standards Institution, London. <br/><br/>
Universal decimal classification; v.1., Pt.1(class 0) 

 - London:  British Standard Institute,  1943. 
 - 60p.  ; 28 cm. 
 - British Standard 1000: Vol. 1 - Part 1 .
<br/><br/><label>Dewey Class. No.: </label>025.43  / 025.43 N43.1.1;1