Bernt   , Phyllir  <br/><br/>
International Telecommunications  

 - NA 
 - Indianapolis   1983 
 - xiv,466 
<br/><br/><label>ISBN: </label>0-672-30119-3 
<br/><br/><label>Subjects--Personal Names: </label><br/>Electronic Engineering
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology