United States. National Park Service. (1981). Federal recreation fee report: Including federal and state and private sector recreation visitation and fee data : a report to Congress. The Service.
Chicago Style (17th ed.) CitationUnited States. National Park Service. Federal Recreation Fee Report: Including Federal and State and Private Sector Recreation Visitation and Fee Data : A Report to Congress. Washington, D.C.: The Service, 1981.
MLA (9th ed.) CitationUnited States. National Park Service. Federal Recreation Fee Report: Including Federal and State and Private Sector Recreation Visitation and Fee Data : A Report to Congress. The Service, 1981.
Warning: These citations may not always be 100% accurate.