United States. Congress. Senate. Committee on Homeland Security and Governmental Affairs. (2011). Nine years after 9/11: Confronting the terrorist threat to the homeland : hearing before the Committee on Homeland Security and Governmental Affairs, United States Senate, One Hundred Eleventh Congress, second session, September 22, 2010. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Homeland Security and Governmental Affairs. Nine Years After 9/11: Confronting the Terrorist Threat to the Homeland : Hearing Before the Committee On Homeland Security and Governmental Affairs, United States Senate, One Hundred Eleventh Congress, Second Session, September 22, 2010. Washington: U.S. G.P.O., 2011.
MLA (8th ed.) CitationUnited States. Congress. Senate. Committee on Homeland Security and Governmental Affairs. Nine Years After 9/11: Confronting the Terrorist Threat to the Homeland : Hearing Before the Committee On Homeland Security and Governmental Affairs, United States Senate, One Hundred Eleventh Congress, Second Session, September 22, 2010. U.S. G.P.O., 2011.