Chapman, Sydney <br/><br/>
The earth's magnetism 
Sydney Chapman                                             
 - London  Methuen  1951 
 - xi, 137p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and Astrophysics Thesaurus
<br/><br/><label>Universal Decimal Class. No.: </label>550.38  / CHA