Fisher, Royal P. <br/><br/>
Information systems security / 
Royal P. Fisher. 
 - Englewood Cliffs  :  Prentice-Hall,  c1984. 
 - xiv, 240 p. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0134647270 (cased) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic data processing departments--Security measures.<br/>Computers--Access control.