Davis, G. B. <br/><br/>
Computer data processing / 

 - 10th ed. 
 - London  McGraw-Hill  1981 
 - 
<br/><br/><label>ISBN: </label>0070157855 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic data processing
<br/><br/><label>Dewey Class. No.: </label>001.6  / D2611