APA (7 ম সংস্করণ) উদ্ধৃতি

Cook, R. C. (1941). Control of the petroleum industry by major oil companies. [publisher not identified].

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Cook, Roy C. Control of the Petroleum Industry by Major Oil Companies. [Washington]: [publisher not identified], 1941.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Cook, Roy C. Control of the Petroleum Industry by Major Oil Companies. [publisher not identified], 1941.