United States. Government Accountability Office. (2007). Drug control: U.S. assistance has helped Mexican counternarcotics efforts, but tons of illicit drugs continue to flow into the United States : report to congressional requesters. U.S. Govt. Accountability Office.
Chicago Style (17th ed.) CitationUnited States. Government Accountability Office. Drug Control: U.S. Assistance Has Helped Mexican Counternarcotics Efforts, but Tons of Illicit Drugs Continue to Flow into the United States : Report to Congressional Requesters. [Washington, D.C.]: U.S. Govt. Accountability Office, 2007.
MLA (9th ed.) CitationUnited States. Government Accountability Office. Drug Control: U.S. Assistance Has Helped Mexican Counternarcotics Efforts, but Tons of Illicit Drugs Continue to Flow into the United States : Report to Congressional Requesters. U.S. Govt. Accountability Office, 2007.