Cook, R. C. (1941). Control of the petroleum industry by major oil companies. [publisher not identified].
Citação do estilo Chicago (17ª ed.)Cook, Roy C. Control of the Petroleum Industry by Major Oil Companies. [Washington]: [publisher not identified], 1941.
Citação MLA (8ª ed.)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.