United States. National Park Service. Mammoth Cave National Park. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. National Park Service. Mammoth Cave National Park. [Washington, D.C.]: U.S. G.P.O..
MLA (8th ed.) CitationUnited States. National Park Service. Mammoth Cave National Park. U.S. G.P.O..
Warning: These citations may not always be 100% accurate.