USA Navy Department. (1980). Indexes and subject cards to the "secret and confidential" correspondence of the Office of the Secretary of the Navy: March 1917 - July 1919. National Archives Trust Fund Board, National Archives and Record Service.
Chicago Style (17th ed.) CitationUSA Navy Department. Indexes and Subject Cards to the "Secret and Confidential" Correspondence of the Office of the Secretary of the Navy: March 1917 - July 1919. Washington: National Archives Trust Fund Board, National Archives and Record Service, 1980.
MLA (9th ed.) CitationUSA Navy Department. Indexes and Subject Cards to the "Secret and Confidential" Correspondence of the Office of the Secretary of the Navy: March 1917 - July 1919. National Archives Trust Fund Board, National Archives and Record Service, 1980.