Davis, Gordon B <br/><br/>
Computer data processing 

 - 2 
 - Auckland  McGraw-Hill  1981 
 - viii, 662p.  
<br/><br/> Includes bibliographical references, glossary and index 
<br/><br/><label>ISBN: </label>007Y851697 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic data processing <br/>Electronic digital computers