Powner, D. A. (2014). Border security, DHS needs to strengthen its efforts to modernize key enforcement systems: Testimony before the Subcommittee on Oversight and Management Efficiency, Committee on Homeland Security, House of Representatives. United States Government Accountability Office.
Chicago Style (17th ed.) CitationPowner, David A. Border Security, DHS Needs to Strengthen Its Efforts to Modernize Key Enforcement Systems: Testimony Before the Subcommittee on Oversight and Management Efficiency, Committee on Homeland Security, House of Representatives. [Washington, D.C.]: United States Government Accountability Office, 2014.
MLA (9th ed.) CitationPowner, David A. Border Security, DHS Needs to Strengthen Its Efforts to Modernize Key Enforcement Systems: Testimony Before the Subcommittee on Oversight and Management Efficiency, Committee on Homeland Security, House of Representatives. United States Government Accountability Office, 2014.