Walsh, Thomas M.; Zlatic, Thomas D. (1981). "Mark Twain and the Art of Memory". American Literature. 53 (2). Duke University Press: 214–231. doi:10.2307/2926100. JSTOR2926100.
Walsh, Thomas M.; Zlatic, Thomas D. (1981). "Mark Twain and the Art of Memory". American Literature. 53 (2). Duke University Press: 214–231. doi:10.2307/2926100. JSTOR2926100.