Usner, D. H. (2009). Indian work: Language and livelihood in Native American history. Harvard University Press.
Citace podle Chicago (17th ed.)Usner, Daniel H. Indian Work: Language and Livelihood in Native American History. Cambridge, Mass.: Harvard University Press, 2009.
Citace podle MLA (9th ed.)Usner, Daniel H. Indian Work: Language and Livelihood in Native American History. Harvard University Press, 2009.
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