United States. Government Accountability Office. (2009). Immigration enforcement: Better controls needed over program authorizing state and local enforcement of federal immigration laws : report to congressional requesters. U.S. Govt. Accountability Office.
Chicago Style (17th ed.) CitationUnited States. Government Accountability Office. Immigration Enforcement: Better Controls Needed over Program Authorizing State and Local Enforcement of Federal Immigration Laws : Report to Congressional Requesters. [Washington, D.C.]: U.S. Govt. Accountability Office, 2009.
MLA (8th ed.) CitationUnited States. Government Accountability Office. Immigration Enforcement: Better Controls Needed over Program Authorizing State and Local Enforcement of Federal Immigration Laws : Report to Congressional Requesters. U.S. Govt. Accountability Office, 2009.