United States Steel Corporation. (1955). Annual Report. U.S. Steel Corp.
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Chicago Style (17th ed.) Citation
United States Steel Corporation. Annual Report. Pittsburgh, Pa: U.S. Steel Corp, 1955.
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MLA引文
United States Steel Corporation. Annual Report. U.S. Steel Corp, 1955.
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警告：這些引文格式不一定是100％准確.