APA

United States, . (2018). Examining the Department of Homeland Security's efforts to counter weapons of mass destruction: hearing before the Subcommittee on Emergency Preparedness, Response and Communications of the Committee on Homeland Security, House of Representatives, One Hundred Fifteenth Congress, first session, December 7, 2017. Washington: U.S. Government Publishing Office.

Chicago

United States, . 2018. Examining the Department of Homeland Security's efforts to counter weapons of mass destruction: hearing before the Subcommittee on Emergency Preparedness, Response and Communications of the Committee on Homeland Security, House of Representatives, One Hundred Fifteenth Congress, first session, December 7, 2017. Washington: U.S. Government Publishing Office.

Harvard

United States, . (2018). Examining the Department of Homeland Security's efforts to counter weapons of mass destruction: hearing before the Subcommittee on Emergency Preparedness, Response and Communications of the Committee on Homeland Security, House of Representatives, One Hundred Fifteenth Congress, first session, December 7, 2017. Washington: U.S. Government Publishing Office.

MLA

United States, . Examining the Department of Homeland Security's efforts to counter weapons of mass destruction: hearing before the Subcommittee on Emergency Preparedness, Response and Communications of the Committee on Homeland Security, House of Representatives, One Hundred Fifteenth Congress, first session, December 7, 2017. Washington: U.S. Government Publishing Office. 2018.