United States. Consulate (Bremen, Germany), & United States. National Archives and Records Service. (1959). Despatches from United States consuls in Bremen, 1794-1906. National Archives, National Archives and Records Service, General Services Administration.
Chicago-referens (17:e uppl.)United States. Consulate (Bremen, Germany), och United States. National Archives and Records Service. Despatches from United States Consuls in Bremen, 1794-1906. Washington: National Archives, National Archives and Records Service, General Services Administration, 1959.
MLA-referens (8:e uppl.)United States. Consulate (Bremen, Germany), och United States. National Archives and Records Service. Despatches from United States Consuls in Bremen, 1794-1906. National Archives, National Archives and Records Service, General Services Administration, 1959.