APA

United States, . (2020). The Department of the Interior's final list of critical minerals for 2018 and opportunities to strengthen the United States' mineral security: hearing before the Committee on Energy and Natural Resources, United States Senate, One Hundred Fifteenth Congress, second session July 17, 2018. Washington: U.S. Government Publishing Office.

Chicago

United States, . 2020. The Department of the Interior's final list of critical minerals for 2018 and opportunities to strengthen the United States' mineral security: hearing before the Committee on Energy and Natural Resources, United States Senate, One Hundred Fifteenth Congress, second session July 17, 2018. Washington: U.S. Government Publishing Office.

Harvard

United States, . (2020). The Department of the Interior's final list of critical minerals for 2018 and opportunities to strengthen the United States' mineral security: hearing before the Committee on Energy and Natural Resources, United States Senate, One Hundred Fifteenth Congress, second session July 17, 2018. Washington: U.S. Government Publishing Office.

MLA

United States, . The Department of the Interior's final list of critical minerals for 2018 and opportunities to strengthen the United States' mineral security: hearing before the Committee on Energy and Natural Resources, United States Senate, One Hundred Fifteenth Congress, second session July 17, 2018. Washington: U.S. Government Publishing Office. 2020.