DAVIES, KENNETH <br/><br/>
IONOSPHERIC RADIO PROPAGATION 

 - S.E. 
 - Estados Unidos  DOVER PUBLICATIONS, INC.  1950 NEW YORK 
 - 470 
<br/><br/><label>LCCN: </label>17651 
<br/><br/><label>Dewey Class. No.: </label>551