Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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

Attenzione: Queste citazioni potrebbero non essere precise al 100%.