United States. Congress. House. Committee on Foreign Affairs. Subcommittee on the Western Hemisphere. (2009). Guns, drugs and violence: The Merida Initiative and the challenge in Mexico : hearing before the Subcommittee on the Western Hemisphere of the Committee on Foreign Affairs, House of Representatives, One Hundred Eleventh Congress, first session, March 18, 2009. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Foreign Affairs. Subcommittee on the Western Hemisphere. Guns, Drugs and Violence: The Merida Initiative and the Challenge in Mexico : Hearing Before the Subcommittee on the Western Hemisphere of the Committee on Foreign Affairs, House of Representatives, One Hundred Eleventh Congress, First Session, March 18, 2009. Washington: U.S. Government Printing Office, 2009.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Foreign Affairs. Subcommittee on the Western Hemisphere. Guns, Drugs and Violence: The Merida Initiative and the Challenge in Mexico : Hearing Before the Subcommittee on the Western Hemisphere of the Committee on Foreign Affairs, House of Representatives, One Hundred Eleventh Congress, First Session, March 18, 2009. U.S. Government Printing Office, 2009.