APA

United States, . (2019). Maritime transportation in the arctic: the U.S. role : hearing before the Subcommittee on Coast Guard and Maritime Transportation of the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Fifteenth Congress, second session, June 7, 2018. Washington: U.S. Government Publishing Office.

Chicago

United States, . 2019. Maritime transportation in the arctic: the U.S. role : hearing before the Subcommittee on Coast Guard and Maritime Transportation of the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Fifteenth Congress, second session, June 7, 2018. Washington: U.S. Government Publishing Office.

Harvard

United States, . (2019). Maritime transportation in the arctic: the U.S. role : hearing before the Subcommittee on Coast Guard and Maritime Transportation of the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Fifteenth Congress, second session, June 7, 2018. Washington: U.S. Government Publishing Office.

MLA

United States, . Maritime transportation in the arctic: the U.S. role : hearing before the Subcommittee on Coast Guard and Maritime Transportation of the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Fifteenth Congress, second session, June 7, 2018. Washington: U.S. Government Publishing Office. 2019.