Bray, R. J. <br/><br/>
Sunspots 
R. J. Bray and R. E. Loughhead                                                    
 - New York  Dover Publications  1964 
 - xiii, 303p. 
<br/><br/><label>ISBN: </label>0-486-63731-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sun<br/>Sunspots
<br/><br/><label>Universal Decimal Class. No.: </label>523.746  / BRA