Cita APA (7th ed.)
ebrary, Inc, & Fishkin, S. F. (2002). A historical guide to Mark Twain. Oxford University Press.
Cita Chicago (17th ed.)
ebrary, Inc, i Shelley Fisher Fishkin. A Historical Guide to Mark Twain. Oxford ; New York: Oxford University Press, 2002.
Cita MLA (9th ed.)
ebrary, Inc, i Shelley Fisher Fishkin. A Historical Guide to Mark Twain. Oxford University Press, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.