Bates, Regis J. <br/><br/>
Principles of Voice and Data Communications 

 - America  McGraw Hill  2007 
<br/><br/><label>ISBN: </label>0-07-125767-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data communications
<br/><br/><label>Dewey Class. No.: </label>621.382  / BAT