Beecher Keyes, Nelson. <br/><br/>
America's national parks :  a photographic encyclopedia of our magnificent natural woderland / 
N. Beecher Keyes ; 5 maps by Rafael Palacios 
 - New York :  Garden City,  1957. 
 - 253 p.. ;  ill. 
 - 074.5 (470) (NLA) .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ճարտարապետություն--Պուրակներ
<br/><br/><label>Universal Decimal Class. No.: </label>074.5 (470) (NLA)