Coulombe, J. L. (2003). Mark Twain and the American West. University of Missouri Press.
Chicago-čujuhus (17. p.)Coulombe, Joseph L. Mark Twain and the American West. Columbia: University of Missouri Press, 2003.
MLA-čujuhus (9. p.)Coulombe, Joseph L. Mark Twain and the American West. University of Missouri Press, 2003.
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