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APA ZitierstilWilford, L. A. (1950). The prehistoric indians of Minnesota: Some mounds of the Rainy River aspect. - St. Paul, MN.
Chicago ZitierstilWilford, Lloyd A. The Prehistoric Indians of Minnesota: Some Mounds of the Rainy River Aspect. - St. Paul, MN. 1950.
MLA ZitierstilWilford, Lloyd A. The Prehistoric Indians of Minnesota: Some Mounds of the Rainy River Aspect. - St. Paul, MN. 1950.