APA-čujuhus (7. p.)
Williams, M. (2009). The brittle thread of life: Backcountry people make a place for themselves in early America. Yale University Press.
Chicago-čujuhus (17. p.)
Williams, Mark. The Brittle Thread of Life: Backcountry People Make a Place for Themselves in Early America. New Haven: Yale University Press, 2009.
MLA-čujuhus (9. p.)
Williams, Mark. The Brittle Thread of Life: Backcountry People Make a Place for Themselves in Early America. Yale University Press, 2009.
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