Chapman, Sydney   1888-1970. <br/><br/>
The earth's magnetism /  
Sydney Chapman  
 - London,  Methuen & co. ltd.  [1936] 
 - 116 p.  
 - Methuen´s monographs on physical subjects .
<br/><br/><label>Subjects--Topical Terms: </label><br/>MAGNETISMO<br/>GEOLOGÍA
<br/><br/><label>Universal Decimal Class. No.: </label>55