APA (7e ed.) Bronvermelding

Sampson, A. (1975). Seven Sisters: The great oil companies and the world they shaped. Bantam Book.

Chicago (17e ed.) Bronvermelding

Sampson, Anthony. Seven Sisters: The Great Oil Companies and the World They Shaped. USA: Bantam Book, 1975.

MLA (9e ed.) Bronvermelding

Sampson, Anthony. Seven Sisters: The Great Oil Companies and the World They Shaped. Bantam Book, 1975.