Rawer, K. <br/><br/>
The ionosphere  Its significance for geophysics and radio communications. American edition 
by K. Rawer, Tr. by L. Katz. 
 - New York  Frederic Ungar Pub.  1956 
 - 202p.  Incl. index 
<br/><br/><label>Dewey Class. No.: </label>621.3841154  / N56