Katzan, Harry <br/><br/>
Computer data security 
by Harry Katzan 
 - New York  Van Nostrand Reinhold  1973 
 - viii, 223p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic data processing<br/>Electronic data processing departments --Security measures
<br/><br/><label>Dewey Class. No.: </label>I5371 K159