United States. National Park Service, ProQuest (Firm), & United States. Department of the Interior. (1917). Report of the Director of the National Park Service. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. National Park Service, ProQuest (Firm), and United States. Department of the Interior. Report of the Director of the National Park Service. Washington: [publisher not identified], 1917.
MLA (9th ed.) CitationUnited States. National Park Service, et al. Report of the Director of the National Park Service. [publisher not identified], 1917.
Warning: These citations may not always be 100% accurate.