Sampson, A. (1975). Seven Sisters: The great oil companies and the world they shaped. Bantam Book.
Chicago-Zitierstil (17. Ausg.)Sampson, Anthony. Seven Sisters: The Great Oil Companies and the World They Shaped. USA: Bantam Book, 1975.
MLA-Zitierstil (9. Ausg.)Sampson, Anthony. Seven Sisters: The Great Oil Companies and the World They Shaped. Bantam Book, 1975.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.