Freeman, Roger L.  <br/><br/>
Telecommunication system engineering :  analog and digital network design / 
Roger L. Freeman. 
 - New York :  John Wiley & Sons,  1980. 
 - xxii, 480 p. :  ill. ;  24 cm. 
<br/><br/> 'A Wiley-Interscience publication.' 
<br/><br/><label>ISBN: </label>0471029556  23.50 (est.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication systems--Design and construction.<br/>Telephone systems--Design and construction.