British standards institution <br/><br/>
Universal decimal classification  auxiliary signs and subdivisions 

 - London  British standards institutions  1974 
 - 61p.; 28cm. 
<br/><br/><label>ISBN: </label>2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library and information science - universal decimal classification<br/>Technical treatment - documets