Kaplan, J. (1974). Mark Twain and his world. Simon and Schuster.
Cita Chicago Style (17a ed.)Kaplan, Justin. Mark Twain and His World. New York: Simon and Schuster, 1974.
Cita MLA (9a ed.)Kaplan, Justin. Mark Twain and His World. Simon and Schuster, 1974.
Precaución: Estas citas no son 100% exactas.