Tilden, Freeman <br/><br/>
The national parks. 
Foreword by George B. Hartzog, Jr. 
 - New York  Knopf  1951. 
 - 417 p., xxi p., pl. 
<br/><br/><label>LCCN: </label>evl00000057  
<br/><br/><label>Subjects--Topical Terms: </label><br/>National parks and reserves--United States.
<br/><br/><label>LC Class. No.: </label>E160  / .T5 1968 
<br/><br/><label>Dewey Class. No.: </label>917.3