The Cambridge introduction to Mark Twain

Messent, Peter, 1946-
Cambridge, UK ; New York : Cambridge University Press, 2007.

The Civil War letters of Joseph Hopkins Twichell : a chaplain's story

Twichell, Joseph Hopkins, 1838-1918, author.
Athens : University of Georgia Press, [2006].

Criminal proceedings : the contemporary American crime novel

Chicago, Ill. : Pluto Press, 1997.

The letters of Mark Twain and Joseph Hopkins Twichell

Twain, Mark, 1835-1910, author.
Athens, Georgia : The University of Georgia, [2017]

Literature of the occult ; a collection of critical essays

Englewood Cliffs, N.J. : Prentice-Hall, [1981]

Mark Twain and male friendship : the Twichell, Howells, and Rogers friendships

Messent, Peter, 1946-
Oxford ; New York : Oxford University Press, 2009.