APA (7th ed.) Citation

(2015). Parkway milepost. [National Park Service].

Chicago Style (17th ed.) Citation

Parkway Milepost. [Washington, D.C.]: [National Park Service], 2015.

MLA (9th ed.) Citation

Parkway Milepost. [National Park Service], 2015.

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