Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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