Stetson H T <br/><br/>
Sunpots in actions 
by Stetson H T 
 -  1947 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>70458 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>B93:95, H7