United States. National Park Service. National Trails System Branch. (2008). National historic trails: Auto tour route interpretive guide : the tangle of trails through Idaho. National Park Service, Dept. of the Interior.
Chicago Style (17th ed.) CitationUnited States. National Park Service. National Trails System Branch. National Historic Trails: Auto Tour Route Interpretive Guide : The Tangle of Trails Through Idaho. Salt Lake City, Utah: National Park Service, Dept. of the Interior, 2008.
MLA (9th ed.) CitationUnited States. National Park Service. National Trails System Branch. National Historic Trails: Auto Tour Route Interpretive Guide : The Tangle of Trails Through Idaho. National Park Service, Dept. of the Interior, 2008.
Warning: These citations may not always be 100% accurate.