Crapol, E. P. (2012). John Tyler: The accidental president. University of North Carolina Press.
芝加哥风格引文Crapol, Edward P. John Tyler: The Accidental President. Chapel Hill: University of North Carolina Press, 2012.
MLA引文Crapol, Edward P. John Tyler: The Accidental President. University of North Carolina Press, 2012.
警告：这些引文格式不一定是100％准确.