Chydenius, J. (1981). The friendship of God and the two ends of man: A study in Christian humanism 1100 - 1321. Commentationes humanarum litterarum.
芝加哥风格引文Chydenius, Johan. "The Friendship of God and the Two Ends of Man: A Study in Christian Humanism 1100 - 1321." Commentationes Humanarum Litterarum 1981.
MLA引文Chydenius, Johan. "The Friendship of God and the Two Ends of Man: A Study in Christian Humanism 1100 - 1321." Commentationes Humanarum Litterarum, 1981.
警告：这些引文格式不一定是100％准确.