United States. Federal Energy Regulatory Commission. Office of Energy Projects & Colorado Interstate Gas Company. (2007). High Plains expansion project: Final environmental impact statement. Federal Energy Regulatory Commission, Office of Energy Projects.
Chicago Style (17th ed.) CitationUnited States. Federal Energy Regulatory Commission. Office of Energy Projects and Colorado Interstate Gas Company. High Plains Expansion Project: Final Environmental Impact Statement. Washington, DC: Federal Energy Regulatory Commission, Office of Energy Projects, 2007.
MLA (9th ed.) CitationUnited States. Federal Energy Regulatory Commission. Office of Energy Projects and Colorado Interstate Gas Company. High Plains Expansion Project: Final Environmental Impact Statement. Federal Energy Regulatory Commission, Office of Energy Projects, 2007.