World Conference on National Parks (1st : 1962 : Seattle, Washington). <br/><br/>
First World Conference on National Parks :  proceedings of a Conference organized by the International Union for Conservation of Nature and Natural Resources ... Seattle, Washington, June 30 - July 7, 1962 / 
ed. by Alexander B. Adams. 
 - Washington, D.C. :  National Park Service, United States Department of the Interior,  1962. 
 - xxxiv, 471 p. : ill. 
 - America's natural resources .
<br/><br/><label>Subjects--Topical Terms: </label><br/>National parks and reserves--Congresses.