PIOUS, R. M. (1986). American politics and government. McGraw-Hill.
芝加哥风格引文PIOUS, Richard M. American Politics and Government. New York: McGraw-Hill, 1986.
MLA引文PIOUS, Richard M. American Politics and Government. McGraw-Hill, 1986.
警告：这些引文格式不一定是100％准确.