Skidmore, M. J., & Tripp, M. C. (1977). American government: A brief introduction (Second edition.). St. Martin's Press.
芝加哥风格引文Skidmore, Max J., 与 Marshall Carter Tripp. American Government: A Brief Introduction. Second edition. New York: St. Martin's Press, 1977.
MLA引文Skidmore, Max J., 与 Marshall Carter Tripp. American Government: A Brief Introduction. Second edition. St. Martin's Press, 1977.
警告：这些引文格式不一定是100％准确.