Não informado. (1900). Bulletin of the Wisconsin Natural History Society. Wisconsin Natural History Society.
Citace podle Chicago (17th ed.)Não informado. Bulletin of the Wisconsin Natural History Society. Milwaukee, Wis: Wisconsin Natural History Society, 1900.
Citace podle MLA (8th ed.)Não informado. Bulletin of the Wisconsin Natural History Society. Wisconsin Natural History Society, 1900.
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