Guide to the universal decimal classification(UDC)  : B. S. 1000c1963 (F. I. D. no. 345) 

 - London  ; British Standards Institution 
 - 127p. 
<br/><br/><label>ISBN: </label> 225 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library Classification<br/>Library Science<br/>Udc
<br/><br/><label>Dewey Class. No.: </label>025.432  / GUI