Katzan Harry <br/><br/>
Computer date security 

 - New York  Yrok Van Nostrand USA         1973 
 - viii, 223p. Bibliography P 209-13  cm. 
 - Computer Science Series .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer Science
<br/><br/><label>Dewey Class. No.: </label>D6,9(B), L3