Butler, J. (1992). Abortion, medicine, and the law (4th ed.). Facts on File.
芝加哥风格引文Butler, J.Douglas. Abortion, Medicine, and the Law. 4th ed. New York: Facts on File, 1992.
MLA引文Butler, J.Douglas. Abortion, Medicine, and the Law. 4th ed. Facts on File, 1992.
警告：这些引文格式不一定是100％准确.