Lankton, L. D. (2010). Hollowed ground: Copper mining and community building on Lake Superior, 1840s-1990s. Wayne State University Press.
Παραπομπή σε μορφή Chicago (17η εκδ.)Lankton, Larry D. Hollowed Ground: Copper Mining and Community Building on Lake Superior, 1840s-1990s. Detroit, Mich.: Wayne State University Press, 2010.
Παραπομπή σε μορφή MLA (9th εκδ.)Lankton, Larry D. Hollowed Ground: Copper Mining and Community Building on Lake Superior, 1840s-1990s. Wayne State University Press, 2010.
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