APA Citation

Gemmill, P. F. (1942). Economics: Principles and problems. New York: Harper & Brothers Publishers.

Trích dẫn kiểu Chicago

Gemmill, Paul F. Economics: Principles and Problems. New York: Harper & Brothers Publishers, 1942.

MLA Citation

Gemmill, Paul F. Economics: Principles and Problems. New York: Harper & Brothers Publishers, 1942.

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