Shepard, Steven <br/><br/>
Telecom crash course / 
Steven Shepard 
 - 2nd ed. 
 - New York :  McGraw-Hill/Osborne,  2005 
 - 504 p. :  ill. ;  23  cm. 
<br/><br/><label>ISBN: </label>0071451439 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication--History