Kirk, Ruth. <br/><br/>
Yellowstone :  the first national park / 
Ruth Kirk ; photos. by Ruth and Louis Kirk. 
 - New York :  Atheneum,  1974. 
 - 103 p. :  ill. 
<br/><br/> Discusses the geologic history & the varied plant & animal life of Yellowstone, the oldest national park. 
<br/><br/><label>ISBN: </label>0689500068 :  $6.25 
<br/><br/><label>LCCN: </label>74076273 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Yellowstone National Park.<br/>National parks and reserves.
<br/><br/><label>Dewey Class. No.: </label>917.87