Russell, Travis <br/><br/>
Telecommunications pocket reference / 
Travis Russell 
 - New York :  McGraw-Hill,  2000       
 - xiii, 367 p. 
 - McGraw-Hill pocket reference .
<br/><br/><label>ISBN: </label>007135140X 
<br/><br/><label>LC Class. No.: </label>R TK 5102 R967t 2000