Ley, Willy,  1906-1969. <br/><br/>
The poles, 
by Willy Ley and the editors of Time-Life Books. 
 - New York :  Time-Life Books,  [c1962] 
 - 192p.  illus. 
<br/><br/> (Life nature library) 
<br/><br/><label>Source: </label> 7.60. 
<br/><br/><label>LCCN: </label>62013534 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Polar regions.