Holzhueter, J. O. (1974). Madeline Island & the Chequamegon region. State Historical Society of Wisconsin.
Lua i Stíl Chicago (17ú heag.)Holzhueter, John O. Madeline Island & the Chequamegon Region. [Madison]: State Historical Society of Wisconsin, 1974.
Lua MLA (9ú heag.)Holzhueter, John O. Madeline Island & the Chequamegon Region. State Historical Society of Wisconsin, 1974.
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