Davies, Kenneth <br/><br/>
Ionospheric radio waves 

 - Waltham, Mass  Blaisdell Publishing Company  1969 
 - xvii, 460p.  24cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ionospheric radio wave propagation
<br/><br/><label>LC Class. No.: </label>TK6553.D293