Kant, I. Foundations of the metaphysics of morals. Bobbs - Merrill Co.
芝加哥风格引文Kant, Immanuel. Foundations of the Metaphysics of Morals. New York: Bobbs - Merrill Co.
MLA引文Kant, Immanuel. Foundations of the Metaphysics of Morals. Bobbs - Merrill Co.
警告：这些引文格式不一定是100％准确.