Beiser, Germaine <br/><br/>
The Story of the Earth's Magnetic Field 

 - New York :  E.P.Dutton   Co,  1964. 
 - 128p.;  ill.;  21cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics
<br/><br/><label>Dewey Class. No.: </label>538  / BEI