Arnold, R.R.  <br/><br/>
Modern data processing  (Book) 

 - 2nd ed. 
 - New York  John Wiley  1972 
 - 474 p.  26 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers Electronic data processing
<br/><br/><label>Universal Decimal Class. No.: </label>004.62 ARN  / 15055