Rooney W J <br/><br/>
Earth-current results of tucson magnetic observatory 1932-1942 

 -  1949 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>38507 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Astronomy<br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>B91:e75g, H9