APA
United States, . (2018). Abandoned hardrock mines and the role of non-governmental entities: oversight hearing before the Subcommittee on Energy and Mineral Resources of the Committee on Natural Resources, U.S. House of Representatives, One Hundred Fifteenth Congress, second session, Thursday, March 15, 2018. Washington: U.S. Government Publishing Office.
Chicago
United States, . 2018. Abandoned hardrock mines and the role of non-governmental entities: oversight hearing before the Subcommittee on Energy and Mineral Resources of the Committee on Natural Resources, U.S. House of Representatives, One Hundred Fifteenth Congress, second session, Thursday, March 15, 2018. Washington: U.S. Government Publishing Office.
Harvard
United States, . (2018). Abandoned hardrock mines and the role of non-governmental entities: oversight hearing before the Subcommittee on Energy and Mineral Resources of the Committee on Natural Resources, U.S. House of Representatives, One Hundred Fifteenth Congress, second session, Thursday, March 15, 2018. Washington: U.S. Government Publishing Office.
MLA
United States, . Abandoned hardrock mines and the role of non-governmental entities: oversight hearing before the Subcommittee on Energy and Mineral Resources of the Committee on Natural Resources, U.S. House of Representatives, One Hundred Fifteenth Congress, second session, Thursday, March 15, 2018. Washington: U.S. Government Publishing Office. 2018.