Pecar, Joseph A. <br/><br/>
The McGraw Hill  telecommunications factbook / Joseph A. Pecar, Roger J. O´Connor, David A.    Garbin 

 - USA : McGraw Hill 
 - x, 373 p. / 24 cm. 
<br/><br/><label>ISBN: </label>0-07- 049183-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>1. TELECOMUNICACIONES
<br/><br/><label>LC Class. No.: </label>TK5101 P334 1992 
<br/><br/><label>Dewey Class. No.: </label>621.3885 P548t