Roger L. Freeman <br/><br/>
Practical data communications  

 - 2nd ed. 
 - New York,  :Wiley-Interscience Publications,  2001. 
 - xxxi,825p.  :ill.  ;24cm. 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0-471-39273-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems
<br/><br/><label>LC Class. No.: </label>FCM TK5705.F72