APA Citation

The Economist. (1997). The World in 1997. U.S.A: The Economist.

Trích dẫn kiểu Chicago

The Economist. The World in 1997. U.S.A: The Economist, 1997.

MLA Citation

The Economist. The World in 1997. U.S.A: The Economist, 1997.

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