Ratcliffe,J.A. <br/><br/>
An Introduction To The Ionosphere And Magnetosphere 
Ratcliffe,J.A. 
 - London  Cambridge   1972 
 - 234  Illustration,index,reference,tables & graph 
<br/><br/><label>ISBN: </label>521099706 
<br/><br/><label>Dewey Class. No.: </label>538  / R1868