Παραπομπή APA

Sampson, A. (1975). The seven sisters: The great oil companies and the world they made. London: Hodder and Stoughton.

Παραπομπή Chicago Style

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

Παραπομπή MLA

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

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