(1872). Annual Report of the geological & natural history survey of Minnesota.
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Chicago-čujuhus (17. p.)
Annual Report of the Geological & Natural History Survey of Minnesota. St.Paul, 1872.
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MLA-čujuhus (9. p.)
Annual Report of the Geological & Natural History Survey of Minnesota. 1872.
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Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.