Walker, D. M. (2008). Department of Homeland Security: Progress made in implementation of management and mission functions, but more work remains : testimony before the Subcommittee on Homeland Security, Committee on Appropriations, House of Representatives. U.S. Govt. Accountability Office.
Chicago Style (17th ed.) CitationWalker, David M. Department of Homeland Security: Progress Made in Implementation of Management and Mission Functions, but More Work Remains : Testimony Before the Subcommittee on Homeland Security, Committee on Appropriations, House of Representatives. [Washington, D.C.]: U.S. Govt. Accountability Office, 2008.
MLA (9th ed.) CitationWalker, David M. Department of Homeland Security: Progress Made in Implementation of Management and Mission Functions, but More Work Remains : Testimony Before the Subcommittee on Homeland Security, Committee on Appropriations, House of Representatives. U.S. Govt. Accountability Office, 2008.