United States. Congress. Senate. Committee on Energy and Natural Resources, ProQuest (Firm), & United States. Congressional Budget Office. (2002). Black Canyon of the Gunnison National Park and Gunnison Gorge National Conservation Area Boundary Revision Act of 2002. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Energy and Natural Resources, ProQuest (Firm), and United States. Congressional Budget Office. Black Canyon of the Gunnison National Park and Gunnison Gorge National Conservation Area Boundary Revision Act of 2002. Washington: [publisher not identified], 2002.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Energy and Natural Resources, et al. Black Canyon of the Gunnison National Park and Gunnison Gorge National Conservation Area Boundary Revision Act of 2002. [publisher not identified], 2002.