Wolfe, A. (2001). Moral freedom: The search for virtue in a world of choice. W.W. Norton & Company.
芝加哥风格引文Wolfe, Alan. Moral Freedom: The Search for Virtue in a World of Choice. New York: W.W. Norton & Company, 2001.
MLA引文Wolfe, Alan. Moral Freedom: The Search for Virtue in a World of Choice. W.W. Norton & Company, 2001.
警告：这些引文格式不一定是100％准确.