Tenney, T. A. (1977). Mark Twain: A reference guide. G.K. Hall & Co.
Cita Chicago Style (17a ed.)Tenney, Thomas Asa. Mark Twain: A Reference Guide. Boston, Estados Unidos: G.K. Hall & Co, 1977.
Cita MLA (9a ed.)Tenney, Thomas Asa. Mark Twain: A Reference Guide. G.K. Hall & Co, 1977.
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