Simpkins, J., & Williams, J. I. (1989). Advanced biology (3rd ed.). Unwin Hyman.
芝加哥风格引文Simpkins, J., 与 J. I. Williams. Advanced Biology. 3rd ed. London: Unwin Hyman, 1989.
MLA引文Simpkins, J., 与 J. I. Williams. Advanced Biology. 3rd ed. Unwin Hyman, 1989.
警告：这些引文格式不一定是100％准确.