APA Citation

National Collection of Fine Arts (U.S.), & United States. National Park Service. (1966). American landscape: A changing frontier. Washington: Smithsonian Institution.

Chicago Style Citation

National Collection of Fine Arts (U.S.), and United States. National Park Service. American Landscape: A Changing Frontier. Washington: Smithsonian Institution, 1966.

MLA Citation

National Collection of Fine Arts (U.S.), and United States. National Park Service. American Landscape: A Changing Frontier. Washington: Smithsonian Institution, 1966.

Warning: These citations may not always be 100% accurate.