Billigheimer, R. V. (1990). Wheels of eternity: A comparative study of William Blake and William Butler Yeats. St. Martin's Press.
芝加哥风格引文Billigheimer, Rachel V. Wheels of Eternity: A Comparative Study of William Blake and William Butler Yeats. New York: St. Martin's Press, 1990.
MLA引文Billigheimer, Rachel V. Wheels of Eternity: A Comparative Study of William Blake and William Butler Yeats. St. Martin's Press, 1990.
警告：这些引文格式不一定是100％准确.