Williams, R. H. (1978). Years of decision: American politics in the 1890s. Wiley.
芝加哥风格引文Williams, R. Hal. Years of Decision: American Politics in the 1890s. New York: Wiley, 1978.
MLA引文Williams, R. Hal. Years of Decision: American Politics in the 1890s. Wiley, 1978.
警告：这些引文格式不一定是100％准确.