APA

United States, . (2018). Ensuring effective and reliable alerts and warnings: hearing before the Subcommittee on Emergency Preparedness, Response and Communications of the Committee on Homeland Security, House of Representatives, One Hundred Fifteenth Congress, second session, February 6, 2018. Washington: U.S. Government Publishing Office.

Chicago

United States, . 2018. Ensuring effective and reliable alerts and warnings: hearing before the Subcommittee on Emergency Preparedness, Response and Communications of the Committee on Homeland Security, House of Representatives, One Hundred Fifteenth Congress, second session, February 6, 2018. Washington: U.S. Government Publishing Office.

Harvard

United States, . (2018). Ensuring effective and reliable alerts and warnings: hearing before the Subcommittee on Emergency Preparedness, Response and Communications of the Committee on Homeland Security, House of Representatives, One Hundred Fifteenth Congress, second session, February 6, 2018. Washington: U.S. Government Publishing Office.

MLA

United States, . Ensuring effective and reliable alerts and warnings: hearing before the Subcommittee on Emergency Preparedness, Response and Communications of the Committee on Homeland Security, House of Representatives, One Hundred Fifteenth Congress, second session, February 6, 2018. Washington: U.S. Government Publishing Office. 2018.