Ratcliffe, J. A. , <br/><br/>
Sun, earth and radio :   an introduction to the ionosphere and magnetosphere / 
by J. A. Ratcliffe. 
 - London :  Weidenfeld and Nicolson,   1970. 
 - 256 p. :  illus.;   20 cm. 
<br/><br/>Bibliography: p. 247-248. 
<br/><br/><label>ISBN: </label>0303178949 
<br/><br/><label>LCCN: </label>70-527608 //r86 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ionosphere.<br/>Magnetosphere.<br/>Ionospheric radio wave propagation.