Matter earth and sky   
ed. by George Gamow. 
 - 2nd 
 - New Jersey  Prentice-Hall  1958 
 - xiv, 624p. 
<br/><br/><label>LCCN: </label>65-13813 
<br/><br/><label>Dewey Class. No.: </label>500.2  / N65