APA (7th ed.) Citation

Niehues, J. E. (2000). Yellowstone National Park panoramic hiking map (Revised 2004.). Trail Tracks.

Chicago Style (17th ed.) Citation

Niehues, James E. Yellowstone National Park Panoramic Hiking Map. Revised 2004. Estes Park, CO: Trail Tracks, 2000.

MLA (9th ed.) Citation

Niehues, James E. Yellowstone National Park Panoramic Hiking Map. Revised 2004. Trail Tracks, 2000.