FitzGerald, Jerry <br/><br/>
Business data communications: basic concepts, security and design 

 - 2nd ed. 
 - New York  John Willey & Sons  1988 
 - xix, 655p, 24cm 
<br/><br/><label>ISBN: </label>047183727X 
<br/><br/><label>Dewey Class. No.: </label>658.05,  / D, fit