Dyfyniad APA
Williams, M. (2009). The brittle thread of life: Backcountry people make a place for themselves in early America. Yale University Press.
Dyfyniad Arddull Chicago
Williams, Mark. The Brittle Thread of Life: Backcountry People Make a Place for Themselves in Early America. New Haven: Yale University Press, 2009.
Dyfyniad MLA
Williams, Mark. The Brittle Thread of Life: Backcountry People Make a Place for Themselves in Early America. Yale University Press, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.