United States. Congress. Senate. Committee on Homeland Security and Governmental Affairs. (2011). Southern border violence, 2009: Hearings before the Committee on Homeland Security and Governmental Affairs, United States Senate, of the One Hundred Eleventh Congress, first session. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Homeland Security and Governmental Affairs. Southern Border Violence, 2009: Hearings Before the Committee on Homeland Security and Governmental Affairs, United States Senate, of the One Hundred Eleventh Congress, First Session. Washington: U.S. G.P.O., 2011.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Homeland Security and Governmental Affairs. Southern Border Violence, 2009: Hearings Before the Committee on Homeland Security and Governmental Affairs, United States Senate, of the One Hundred Eleventh Congress, First Session. U.S. G.P.O., 2011.