Verzello, Robert J. <br/><br/>
Data processing systems and concepts / 
Robert J. Verzello & John Reutter 
 - New York :      McGraw-Hill ,  1982 
 - xvi, 539p. :  ill. ;  30 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>007067325X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers<br/>Electronic data processing
<br/><br/><label>Dewey Class. No.: </label>510.78  / VER