Krabacher, T., Kalipeni, E., & Layachi, A. (2009). Africa (12th ed.). McGraw-Hill.
芝加哥风格引文Krabacher, Thomas, Ezekiel Kalipeni, 与 Azzedine Layachi. Africa. 12th ed. Boston: McGraw-Hill, 2009.
MLA引文Krabacher, Thomas, et al. Africa. 12th ed. McGraw-Hill, 2009.
警告：这些引文格式不一定是100％准确.