x  x <br/><br/>
The upper atmospher and magenetosphere  x 

 - x 
 - Weshington  National Academy of Sciences  1977 
 - ix, 168 
<br/><br/>x 
<br/><br/><label>ISBN: </label>x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Atmosphere Atmosphere 
<br/><br/><label>Dewey Class. No.: </label>551.514/U68