Παραπομπή σε μορφή APA (7η εκδ.)

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.

Παραπομπή σε μορφή Chicago (17η εκδ.)

United States. Department of State, United States. National Archives and Records Service, και William James Yerby. Records of the Department of State Relating to Internal Affairs of Portugal, 1910-1929. Washington: National Archives and Records Service, 1968.

Παραπομπή σε μορφή MLA (8th εκδ.)

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.