Thurow, L. C. (1981). The Zero-Sum society. New York: Penguin Books.
Trích dẫn kiểu ChicagoThurow, Lester C. The Zero-Sum Society. New York: Penguin Books, 1981.
MLA CitationThurow, Lester C. The Zero-Sum Society. New York: Penguin Books, 1981.
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