Living history in the national park system
By: [U.S. Department of the Interior, National Park Service]
Publisher: The Service; For sale by the Supt. of Docs., U.S. G.P.O.
Published: 1970
Place of publication: [Washington, D.C.?]
Language: eng
Number of pages: 20
Subjects: National parks and reserves -- United States -- Guidebooks
Genres: Guidebooks
Notes: Cover title

Author from back cover