The national park system :  eastern United States. 

 - N. P. :  The National Park Services, 
 - N. D. 
<br/><br/>An invivation…… 
<br/><br/><br/>In English 
<br/><br/> Hbk. 
<br/><br/><label>Dewey Class. No.: </label>973 NAT N.D