Gagliardi, Robert M. <br/><br/>
Satellite communications 

 - 2nd ed 
 - New York  Van Nostrand Reinhold  1991 
 - xv,584p, 23cm 
<br/><br/><label>ISBN: </label>0534985246 
<br/><br/><label>Dewey Class. No.: </label>621.38254,  / D, gag