Smith, Henry Nash
Mark Twain: the development of a writer
Belknap Press of Harvard University Press, 1967
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Twain, Mark, 1835-1910
Mark Twain in Australia and New Zealand
Penguin Books, 1973
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Mark Twain letters to mary
edited with a commerntary by Lewis G. Leary
Columbia University Press, 1961
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Cable, George Washington, 1844-1925
Mark Twain [and] G. W. Cable; the record of a literary friendship
Michigan State University Press, 1960
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Mark Twain : a collection of critical essays
edited by Henry Nash Smith
Prentice-Hall, 1963
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