Enger, Norman L. <br/><br/>
Computer security :  a management audit approach / 
Norman L. Enger, Paul W. Howerton 
 - New York :  AMACOM,  1980 
 - 264 p. ;  24 cm. 
<br/><br/>Includes bibliography and index 
<br/><br/><label>ISBN: </label>0814455824 
<br/><br/><label>LCCN: </label>80-65874 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic data processing departments--Security measures