Holmes, J. E., Engelhardt, M. J., & Elder, R. E. (1994). American government: Essentials & perspectives (2nd ed.). McGraw-Hill.
芝加哥风格引文Holmes, Jack E., Michael J. Engelhardt, 与 Robert E. Elder. American Government: Essentials & Perspectives. 2nd ed. New York: McGraw-Hill, 1994.
MLA引文Holmes, Jack E., et al. American Government: Essentials & Perspectives. 2nd ed. McGraw-Hill, 1994.
警告：这些引文格式不一定是100％准确.