Davies, Donald Watts <br/><br/>
Security for computer networks  an introduction to data security in teleprocessing and electronics funds transfer 
D.W. Davies and W.L. Price 
 - 2nd ed. 
 - Chichester  John Wiley & Sons  1989 
 - 377 p. : ill. ; 25 cm. 
 - Wiley series in communication and dirtributed systems .
<br/><br/><label>ISBN: </label>0471921378 
<br/><br/><label>LCCN: </label>89-014760 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems--Security measures