APA

United States, . (2019). The Drug Enforcement Administration's role in combating the opioid epidemic: hearing before the Subcommittee on Oversight and Investigations of the Committee on Energy and Commerce, House of Representatives, One Hundred Fifteenth Congress, second session, March 20, 2018. Washington: U.S. Government Publishing Office.

Chicago

United States, . 2019. The Drug Enforcement Administration's role in combating the opioid epidemic: hearing before the Subcommittee on Oversight and Investigations of the Committee on Energy and Commerce, House of Representatives, One Hundred Fifteenth Congress, second session, March 20, 2018. Washington: U.S. Government Publishing Office.

Harvard

United States, . (2019). The Drug Enforcement Administration's role in combating the opioid epidemic: hearing before the Subcommittee on Oversight and Investigations of the Committee on Energy and Commerce, House of Representatives, One Hundred Fifteenth Congress, second session, March 20, 2018. Washington: U.S. Government Publishing Office.

MLA

United States, . The Drug Enforcement Administration's role in combating the opioid epidemic: hearing before the Subcommittee on Oversight and Investigations of the Committee on Energy and Commerce, House of Representatives, One Hundred Fifteenth Congress, second session, March 20, 2018. Washington: U.S. Government Publishing Office. 2019.