Bates, Regis J., <br/><br/>
Principles of voice and data communications /  
Regis J. Bates, Marcus Bates. 
 - First Edition. 
 - xxviii, 782 pages :  illustrations ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0072257326 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Communications engineering.<br/>Communication equipment.<br/>Internet.
<br/><br/><label>Dewey Class. No.: </label>621.382  / B329