Elion, Glenn R..  <br/><br/>
Fiber Optics in Communications Systems /   1 t. 
Elion Glenn R., Elion Herbert A.. 
 - New York :   Marcel Dekker,   1978. 
 - XI, 245 s:   il.;   23 cm. 
<br/><br/><label>ISBN: </label>082477132X