Administrative history
Subtitle: organizational structures of the National Park Service, 1917-1985
By: by Russ Olsen.
Contributors: United States. National Park Service.
Publisher: U.S. National Park Service
Published: 1985
Place of publication: [Washington, D.C.?]
Language: eng
Number of pages: 136
Subjects: United States. National Park Service -- History.
Notes: Item 648.