Sewell, D. R. (1987). Mark Twain's languages: Discourse, dialogue, and linguistic variety. University of California Press.
Chicago-referens (17:e uppl.)Sewell, David R. Mark Twain's Languages: Discourse, Dialogue, and Linguistic Variety. Berkeley, Calif: University of California Press, 1987.
MLA-referens (9:e uppl.)Sewell, David R. Mark Twain's Languages: Discourse, Dialogue, and Linguistic Variety. University of California Press, 1987.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.