Diplomatic book. (2019). Diplomatic Bluebook 2020. Ministry of Foreign Affairs.
Chicago Style aipamenaDiplomatic book. Diplomatic Bluebook 2020. [Japan]: Ministry of Foreign Affairs, 2019.
MLA aipamenaDiplomatic book. Diplomatic Bluebook 2020. Ministry of Foreign Affairs, 2019.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.