Administrative history :
organizational structures of the National Park Service, 1917 to 1985 /
by Russ Olsen

APA Citation

Olsen, R. (Russell K.)., United States. National Park Service. Administrative Services Division. (1985). Administrative history: organizational structures of the National Park Service, 1917 to 1985. [Washington]: [Administrative Services Division, National Park Service].

MLA Citation

Olsen, Russ (Russell K.), and United States. National Park Service. Administrative Services Division. Administrative History: Organizational Structures of the National Park Service, 1917 to 1985. [Washington]: [Administrative Services Division, National Park Service], 1985.