Marcosson, I. F. (1949). Metal Magic: The Story of the American Smelting and Refining Company. New York: Farrar.
शिकागो स्टाइल उद्धरणMarcosson, Isaac F. Metal Magic: The Story of the American Smelting and Refining Company. New York: Farrar, 1949.
एमएलए उद्धरणMarcosson, Isaac F. Metal Magic: The Story of the American Smelting and Refining Company. New York: Farrar, 1949.
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