APA (7th ed.) Citation

Brian, N. (2011). Designated critical habitat of threatened & endangered species in National Park Service units. U.S. Department of the Interior, National Park Service, Natural Resource Stewardship and Science.

Chicago Style (17th ed.) Citation

Brian, Nancy. Designated Critical Habitat of Threatened & Endangered Species in National Park Service Units. Fort Collins, Colorado: U.S. Department of the Interior, National Park Service, Natural Resource Stewardship and Science, 2011.

MLA (9th ed.) Citation

Brian, Nancy. Designated Critical Habitat of Threatened & Endangered Species in National Park Service Units. U.S. Department of the Interior, National Park Service, Natural Resource Stewardship and Science, 2011.