Swineford, A. P. (1871). Swineford's history of the Lake Superior iron district, its mines and furnaces (2d ed.). Mining Journal Office.
Citace podle Chicago (17th ed.)Swineford, A. P. Swineford's History of the Lake Superior Iron District, Its Mines and Furnaces. 2d ed. Marquette: Mining Journal Office, 1871.
Citace podle MLA (8th ed.)Swineford, A. P. Swineford's History of the Lake Superior Iron District, Its Mines and Furnaces. 2d ed. Mining Journal Office, 1871.
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