APA (7th ed.) Citation

(2009). Natural resource data series. U.S. Department of the Interior, National Park Service, Natural Resource Program Center.

Chicago Style (17th ed.) Citation

Natural Resource Data Series. Fort Collins, Colorado: U.S. Department of the Interior, National Park Service, Natural Resource Program Center, 2009.

MLA (9th ed.) Citation

Natural Resource Data Series. U.S. Department of the Interior, National Park Service, Natural Resource Program Center, 2009.