APA (7th ed.) Zitazioa
Ace communications. (1990). Blood for oil: Forgotten people of South Sudan. Ace communications.
Chicago Style (17th ed.) Zitazioa
Ace communications. Blood for Oil: Forgotten People of South Sudan. Nairobi, Kenya: Ace communications, 1990.
MLA (9th ed.) Zitazioa
Ace communications. Blood for Oil: Forgotten People of South Sudan. Ace communications, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.