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The Journal of Interdisciplinary History 

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Chardon, F. A. Chardon’s Journal at Fort Clark, 1834–1839. Edited by Annie Heloise Abel. Lincoln: University of Nebraska Press, 1997.

Chardon’s Journal at Fort Clark, 1834–1839

Conroy, J. Oliver. «The Life and Death of John Chau, the Man who Tried to Convert his Killers». The Guardian. February 3, 2019.

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Crosby, Alfred W. «Virgin Soil Epidemics as a Factor in the Aboriginal Depopulation in America». William and Mary Quarterly 33, no. 2 (April 1976): 289–299.

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Crosby, Alfred W. Jr. The Columbian Exchange: Biological and Cultural Consequences of 1492. Santa Barbara: Praeger, 2003.

The Columbian Exchange: Biological and Cultural Consequences of 1492

Denevan, William M. «The Pristine Myth: The Landscape of the Americas in 1492». Annals of the Association of American Geographers 82, no. 3 (September 1992): 369–385.

Annals of the Association of American Geographers 

Diamond, Jared. Guns, Germs, and Steel: The Fates of Human Societies. New York: W. W. Norton and Company, 2017.

Guns, Germs, and Steel: The Fates of Human Societies

Dollar, Clyde D. «The High Plains Smallpox Epidemic of 1837–38». Western Historical Quarterly 8, no. 1 (January 1977): 15–38.

Western Historical Quarterly 

Fenn, Elizabeth Anne. Pox Americana: The Great Smallpox Epidemic of 1775—82. New York: Hill and Wang, 2002.

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