APA (7th ed.) Citation

United States. War Dept & United States. National Archives and Records Service. (1971). Letters sent by the Headquarters of the Army (Main series), 1828-1903. National Archives and Record Service.

Chicago Style (17th ed.) Citation

United States. War Dept and United States. National Archives and Records Service. Letters Sent by the Headquarters of the Army (Main Series), 1828-1903. Washington: National Archives and Record Service, 1971.

MLA (8th ed.) Citation

United States. War Dept and United States. National Archives and Records Service. Letters Sent by the Headquarters of the Army (Main Series), 1828-1903. National Archives and Record Service, 1971.

Warning: These citations may not always be 100% accurate.