Dyfyniad APA

Wengert, N. I. (1955). Natural resources and the political struggle. Random House.

Dyfyniad Arddull Chicago

Wengert, Norman I. Natural Resources and the Political Struggle. New York: Random House, 1955.

Dyfyniad MLA

Wengert, Norman I. Natural Resources and the Political Struggle. Random House, 1955.

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