Universal decimal classification:  
/ British Standard Institution 
 - London:   British Standard Institution,   1977 
 - 52p. 
<br/><br/> BS 1000[629] : 1977 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library science
<br/><br/><label>Subjects--Index Terms: </label>Classification Standards 
<br/><br/><label>Universal Decimal Class. No.: </label>D 025.45:629  / L7-;1