United States. National Archives and Records Service. (1984). U-boats and T-boats, 1914-1918. National Archives and Records Service, U.S. General Services Administration.
Chicago Style (17th ed.) CitationUnited States. National Archives and Records Service. U-boats and T-boats, 1914-1918. Washington: National Archives and Records Service, U.S. General Services Administration, 1984.
MLA (9th ed.) CitationUnited States. National Archives and Records Service. U-boats and T-boats, 1914-1918. National Archives and Records Service, U.S. General Services Administration, 1984.
Warning: These citations may not always be 100% accurate.