APA引文

Keith, A. (1947). Evolution and ethics. New York: G.P. Putnam's Sons.

芝加哥风格引文

Keith, Arhur. Evolution and Ethics. New York: G.P. Putnam's Sons, 1947.

MLA引文

Keith, Arhur. Evolution and Ethics. New York: G.P. Putnam's Sons, 1947.

警告：这些引文格式不一定是100％准确.