Ludwig, J. B. (1963). Confusions / Jack B. Ludwig. Graphic Society.
芝加哥风格引文Ludwig, Jack Barry. Confusions / Jack B. Ludwig. Greenwich, Conn: Graphic Society, 1963.
MLA引文Ludwig, Jack Barry. Confusions / Jack B. Ludwig. Graphic Society, 1963.
警告：这些引文格式不一定是100％准确.