Turn, Rein,  1931- <br/><br/>
Privacy and security in databank systems :  measures of effectiveness, costs, and protector-intruder interactions / 
Rein Turn and Norman Z. Shapiro 
 - California :  Rand Corporation, 1972 
 - 36 pages ;  28 cm. 
 - The Rand paper series ;  p. 4871 .
 - Rand paper series ;  p. 4871 .
<br/><br/>Includes bibliographical references.