Bates, Regis J. <br/><br/>
Voice & data communications handbook / 
 Voice and data communications handbook 
Regis J. (Bud) Bates, Donald W. Gregory. 
 - 5th ed. 
 - New York :  McGraw-Hill,  c2007. 
 - 644 p. :  ill. ;  25 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0072263350 9780072263350 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication--Handbooks, manuals, etc.