Hemphill, Charles F  <br/><br/>
Security procedures for computer systems  

 - Illinois:   Dow Jones- Irwin, Inc.,   1973 
 - xii, 251p.  
<br/><br/><label>ISBN: </label>0-87094-058-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer science 
<br/><br/><label>Subjects--Index Terms: </label>Security  
<br/><br/><label>Universal Decimal Class. No.: </label>D 681.3-75   / L3