Cita APA (7th ed.)

Sampson, A. (1975). The seven sisters: The great oil companies and the world they shaped. The Viking Press.

Cita Chicago (17th ed.)

Sampson, Anthony. The Seven Sisters: The Great Oil Companies and the World They Shaped. New York: The Viking Press, 1975.

Cita MLA (9th ed.)

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