Lua APA (7ú heag.)
Coulombe, J. L. (2003). Mark Twain and the American West. University of Missouri Press.
Lua i Stíl Chicago (17ú heag.)
Coulombe, Joseph L. Mark Twain and the American West. Columbia: University of Missouri Press, 2003.
Lua MLA (9ú heag.)
Coulombe, Joseph L. Mark Twain and the American West. University of Missouri Press, 2003.
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