Lankton, L. D. (2010). Hollowed ground: Copper mining and community building on Lake Superior, 1840s-1990s. Wayne State University Press.
Dyfyniad Arddull ChicagoLankton, Larry D. Hollowed Ground: Copper Mining and Community Building on Lake Superior, 1840s-1990s. Detroit, Mich.: Wayne State University Press, 2010.
Dyfyniad MLALankton, Larry D. Hollowed Ground: Copper Mining and Community Building on Lake Superior, 1840s-1990s. Wayne State University Press, 2010.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.