APA

United States, . (2019). Factors impacting global oil prices: hearing before the Committee on Energy and Natural Resources, United States Senate, One Hundred Fifteenth Congress, second session, July 24, 2018. Washington: U.S. Government Publishing Office.

Chicago

United States, . 2019. Factors impacting global oil prices: hearing before the Committee on Energy and Natural Resources, United States Senate, One Hundred Fifteenth Congress, second session, July 24, 2018. Washington: U.S. Government Publishing Office.

Harvard

United States, . (2019). Factors impacting global oil prices: hearing before the Committee on Energy and Natural Resources, United States Senate, One Hundred Fifteenth Congress, second session, July 24, 2018. Washington: U.S. Government Publishing Office.

MLA

United States, . Factors impacting global oil prices: hearing before the Committee on Energy and Natural Resources, United States Senate, One Hundred Fifteenth Congress, second session, July 24, 2018. Washington: U.S. Government Publishing Office. 2019.