Jefferys Harold <br/><br/>
Earth 

 - 2 
 -  1929 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>37881 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Astronomy<br/>Astrobiology
<br/><br/><label>Dewey Class. No.: </label>B91, F9