APA aipamena

Sampson, A. (1975). The Seven Sisters: The greate oil companies and the world they made. London: Hodder and Stoughton.

Chicago Style aipamena

Sampson, Anthony. The Seven Sisters: The Greate Oil Companies and the World They Made. London: Hodder and Stoughton, 1975.

MLA aipamena

Sampson, Anthony. The Seven Sisters: The Greate Oil Companies and the World They Made. London: Hodder and Stoughton, 1975.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.