APA (7th ed.) Citation

(2018). Oregon Trail: Oregon National Historic Trail. National Park Service, U.S. Department of the Interior.

Chicago Style (17th ed.) Citation

Oregon Trail: Oregon National Historic Trail. [Washington, D.C.?]: National Park Service, U.S. Department of the Interior, 2018.

MLA (9th ed.) Citation

Oregon Trail: Oregon National Historic Trail. National Park Service, U.S. Department of the Interior, 2018.

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