APA

United States, . (2019). The opioid crisis: stopping the flow of synthetic opioids in the international mail system : hearing before the Subcommittee on Trade of the Committee on Ways and Means, U.S. House of Representatives, One Hundred Fifteenth Congress, second session, April 25, 2018. Washington: U.S. Government Publishing Office.

Chicago

United States, . 2019. The opioid crisis: stopping the flow of synthetic opioids in the international mail system : hearing before the Subcommittee on Trade of the Committee on Ways and Means, U.S. House of Representatives, One Hundred Fifteenth Congress, second session, April 25, 2018. Washington: U.S. Government Publishing Office.

Harvard

United States, . (2019). The opioid crisis: stopping the flow of synthetic opioids in the international mail system : hearing before the Subcommittee on Trade of the Committee on Ways and Means, U.S. House of Representatives, One Hundred Fifteenth Congress, second session, April 25, 2018. Washington: U.S. Government Publishing Office.

MLA

United States, . The opioid crisis: stopping the flow of synthetic opioids in the international mail system : hearing before the Subcommittee on Trade of the Committee on Ways and Means, U.S. House of Representatives, One Hundred Fifteenth Congress, second session, April 25, 2018. Washington: U.S. Government Publishing Office. 2019.