APA (7th ed.) Citation

Yellowstone National Park (Agency : U.S.). (1960). Trail guide: Explore the upper geyser basin. Yellowstone National Park.

Chicago Style (17th ed.) Citation

Yellowstone National Park (Agency : U.S.). Trail Guide: Explore the Upper Geyser Basin. [Yellowstone National Park, Wyo.]: Yellowstone National Park, 1960.

MLA (9th ed.) Citation

Yellowstone National Park (Agency : U.S.). Trail Guide: Explore the Upper Geyser Basin. Yellowstone National Park, 1960.