APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (8. p.)

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