UDC: Universal decimal classification:  
/ British Standards Institute 
 - London:   British Standards Institute,   2005 
<br/><br/>Vol. 1 (Systematic tables); ISBN: 058045469X; xxxii, 898p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library science
<br/><br/><label>Subjects--Index Terms: </label>Classification 
<br/><br/><label>Universal Decimal Class. No.: </label>D 025.45   / P5.1;2