Gregory, Robert H. <br/><br/>
Automatic Data-Processing Systems : Principles And 

 -  Wadsworth  1963 
 - XI, 816 P. 23 CM. 
<br/><br/> WADSWORTH ACCOUNTING AND DATA-PROCESSING SERIES. 
<br/><br/><label>Dewey Class. No.: </label>004 GRE 1963