APA (7th ed.) Citation

United States. National Park Service. National Park Service publication series ([Archived version].). National Park Service.

Chicago Style (17th ed.) Citation

United States. National Park Service. National Park Service Publication Series. [Archived version]. [Washington, D.C.]: National Park Service.

MLA (9th ed.) Citation

United States. National Park Service. National Park Service Publication Series. [Archived version]. National Park Service.

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