APA Citation

a. (1992). World Resousces 1992 - 93. New York: Oxford University Press.

Trích dẫn kiểu Chicago

a. World Resousces 1992 - 93. New York: Oxford University Press, 1992.

MLA Citation

a. World Resousces 1992 - 93. New York: Oxford University Press, 1992.

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