Citação norma APA

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

Citação norma Chicago

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

Citação norma MLA

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

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.