Davenport, William P. <br/><br/>
Modern data communication :   concepts, language, and media /  
by William P. Davenport. 
 - New York :   Hayden Book Co.,   1971. 
 - 200 p. :    ill. ;    24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems.--------
<br/><br/><label>Dewey Class. No.: </label>621.38 DAV