Corbett, Edmund V <br/><br/>
Photo-charging  

 - London:  James Clarke & Co. Ltd.,   1957 
 - x, 126p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library science
<br/><br/><label>Subjects--Index Terms: </label>Operation Punched card 
<br/><br/><label>Universal Decimal Class. No.: </label>D 024.6  / J7