United States. Consulate (Muscat, Oman), United States. Department of State, & United States. National Archives and Records Service. (1961). Despatches from United States consuls in Muscat, 1880-1906. National Archives, National Archives and Records Service, General Services Administration.
Chicago-referens (17:e uppl.)United States. Consulate (Muscat, Oman), United States. Department of State, och United States. National Archives and Records Service. Despatches from United States Consuls in Muscat, 1880-1906. Washington: National Archives, National Archives and Records Service, General Services Administration, 1961.
MLA-referens (8:e uppl.)United States. Consulate (Muscat, Oman), et al. Despatches from United States Consuls in Muscat, 1880-1906. National Archives, National Archives and Records Service, General Services Administration, 1961.