Purser, Michael <br/><br/>
Secure data networking 

 - London:   Artech House,   1993 
 - ix, 241p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer
<br/><br/><label>Subjects--Index Terms: </label>Network 
<br/><br/><label>Universal Decimal Class. No.: </label>D 681.324.004.4  / N3