Universal decimal classification 
/ British Standards Institution 
 - London:   British Standards Institution,   1954 
 - 36p. 
 - FID  179 .
<br/><br/> 678, Macromolecular materials<br/>679, Industries based on stone and other processable materials [025.45 : 678/679] 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library science
<br/><br/><label>Universal Decimal Class. No.: </label>D 025.45:678/679  / J4