United States. Department of Homeland Security. (2004). U.S. Department of Homeland Security ... list of DHS prime contractors (prepared February 3, 2004). U.S. Dept. of Homeland Security.
Chicago Style (17th ed.) CitationUnited States. Department of Homeland Security. U.S. Department of Homeland Security ... List of DHS Prime Contractors (prepared February 3, 2004). [Washington, D.C.]: U.S. Dept. of Homeland Security, 2004.
MLA (9th ed.) CitationUnited States. Department of Homeland Security. U.S. Department of Homeland Security ... List of DHS Prime Contractors (prepared February 3, 2004). U.S. Dept. of Homeland Security, 2004.
Warning: These citations may not always be 100% accurate.