APA (7 ম সংস্করণ) উদ্ধৃতি

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

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

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

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

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