Preston, R. (1991). American Steel: Hot Metal Men and the Resurrection of the Rust Belt. New York: Prentice Hall Press.
Trích dẫn kiểu ChicagoPreston, Richard. American Steel: Hot Metal Men and the Resurrection of the Rust Belt. New York: Prentice Hall Press, 1991.
Deismireacht MLAPreston, Richard. American Steel: Hot Metal Men and the Resurrection of the Rust Belt. New York: Prentice Hall Press, 1991.
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