United States. National Archives and Records Service & United States. Dept. of the Treasury. Office of the Secretary. (1964). Letters sent by the Secretary of the Treasury relating to restricted commercial intercourse, 1861-1887. National Archives, National Archives and Records Service, General Services Administration.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United States. National Archives and Records Service و United States. Dept. of the Treasury. Office of the Secretary. Letters Sent by the Secretary of the Treasury Relating to Restricted Commercial Intercourse, 1861-1887. Washington [D.C.]: National Archives, National Archives and Records Service, General Services Administration, 1964.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)United States. National Archives and Records Service و United States. Dept. of the Treasury. Office of the Secretary. Letters Sent by the Secretary of the Treasury Relating to Restricted Commercial Intercourse, 1861-1887. National Archives, National Archives and Records Service, General Services Administration, 1964.