APA (7th ed.) Citation

United States. National Park Service. (1956). Our heritage: A plan for its protecton and use : Mission 66. National Park Service.

Chicago Style (17th ed.) Citation

United States. National Park Service. Our Heritage: A Plan for Its Protecton and Use : Mission 66. Washington: National Park Service, 1956.

MLA (9th ed.) Citation

United States. National Park Service. Our Heritage: A Plan for Its Protecton and Use : Mission 66. National Park Service, 1956.

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