United States. Congress. House. Committee on Natural Resources. Subcommittee on Energy and Mineral Resources. (2014). Mining in America: Powder River Basin coal mining, the benefits and challenges : oversight hearing before the Subcommittee on Energy and Mineral Resources of the Committee on Natural Resources, U.S. House of Representatives, One Hundred Thirteenth Congress, first session, Tuesday, July 9, 2013. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Natural Resources. Subcommittee on Energy and Mineral Resources. Mining in America: Powder River Basin Coal Mining, the Benefits and Challenges : Oversight Hearing Before the Subcommittee on Energy and Mineral Resources of the Committee on Natural Resources, U.S. House of Representatives, One Hundred Thirteenth Congress, First Session, Tuesday, July 9, 2013. Washington: U.S. Government Printing Office, 2014.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Natural Resources. Subcommittee on Energy and Mineral Resources. Mining in America: Powder River Basin Coal Mining, the Benefits and Challenges : Oversight Hearing Before the Subcommittee on Energy and Mineral Resources of the Committee on Natural Resources, U.S. House of Representatives, One Hundred Thirteenth Congress, First Session, Tuesday, July 9, 2013. U.S. Government Printing Office, 2014.