Yellowstone

MLA

Yellowstone. Yellowstone, WY: [Yellowstone National Park, National Park Service, U.S. Dept. of the Interior], .

APA

Yellowstone. Yellowstone, WY: [Yellowstone National Park, National Park Service, U.S. Dept. of the Interior].

Chicago

Yellowstone. Yellowstone, WY: [Yellowstone National Park, National Park Service, U.S. Dept. of the Interior].