FitzGearald, Jerry <br/><br/>
Business data communications :  basic concepts,security and design 
/Jerry FitzGerald 
 - New York  John Wiley & Sons  c1984 
 - ix, 502 p. :  ill. ;  24 cm 
 - Wiley series in computers and information processing systems in business .
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>NA  TZS 23,000/= 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information systems<br/>Data communication
<br/><br/><label>Dewey Class. No.: </label>621.38 FIT