Barksdale, William J. <br/><br/>
Practical computer data communications / 
William J. Barksdale. 
 - New York  1986. 
 - 450 p. :  ill. ;  24 cm. 
 - Applications of communications theory .
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0306423235 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems.