United States. Department of State, United States. National Archives and Records Service, & Yerby, W. J. (1968). Records of the Department of State relating to internal affairs of Portugal, 1910-1929. National Archives and Records Service.
Chicago-referens (17:e uppl.)United States. Department of State, United States. National Archives and Records Service, och William James Yerby. Records of the Department of State Relating to Internal Affairs of Portugal, 1910-1929. Washington: National Archives and Records Service, 1968.
MLA-referens (8:e uppl.)United States. Department of State, et al. Records of the Department of State Relating to Internal Affairs of Portugal, 1910-1929. National Archives and Records Service, 1968.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.