Mesa Verde Museum Association; United States. National Park Service. Spruce Tree House Trail Guide: Mesa Verde National Park, Colorado.
Chicago Style (17th ed.) CitationMesa Verde Museum Association; United States. National Park Service. Spruce Tree House Trail Guide: Mesa Verde National Park, Colorado.
MLA (9th ed.) CitationMesa Verde Museum Association; United States. National Park Service. Spruce Tree House Trail Guide: Mesa Verde National Park, Colorado.
Warning: These citations may not always be 100% accurate.