APA (7th ed.) Citation

United States. National Park Service & United States. National Park Service. Natural Resource Stewardship and Science. (2001). Natural Resource Challenge, funding the National Park Service's action plan for preserving natural resources. U.S. Dept. of [the] Interior, National Park Service, Natural Resource Stewardship and Science.

Chicago Style (17th ed.) Citation

United States. National Park Service and United States. National Park Service. Natural Resource Stewardship and Science. Natural Resource Challenge, Funding the National Park Service's Action Plan for Preserving Natural Resources. Washington, D.C.: U.S. Dept. of [the] Interior, National Park Service, Natural Resource Stewardship and Science, 2001.

MLA (9th ed.) Citation

United States. National Park Service and United States. National Park Service. Natural Resource Stewardship and Science. Natural Resource Challenge, Funding the National Park Service's Action Plan for Preserving Natural Resources. U.S. Dept. of [the] Interior, National Park Service, Natural Resource Stewardship and Science, 2001.