Universal decimal classification:   Second english full edition  
/ British standards institution 
 - London:   British standards institution,   1975 
 - 79p.  
 - FID  483 .
<br/><br/> UDC 621.3 electrical engineering  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library science 
<br/><br/><label>Subjects--Index Terms: </label>Classification scheme  
<br/><br/><label>Universal Decimal Class. No.: </label>D 025.45:621.3  / K4;L5;1