Bates, Regis J. <br/><br/>
Principles of voice and data communications / 

 - Boston :   McGraw-Hill/Irwin,   c2007. 
 - xxviii,   782 p. : ill. ;   23 cm. 
<br/><br/>Includes index.<br/> 
<br/><br/><label>ISBN: </label>9780071257671 
<br/><br/><label>Subjects--Topical Terms: </label><br/>1. Telecommunication. 
<br/><br/><label>Dewey Class. No.: </label>Circ. 621.382 B329p 2007