Voegelin, E., & Franz, M. (2000). The Ecumenic Age ([New ed.].). University of Missouri Press.
芝加哥风格引文Voegelin, Eric, 与 Michael Franz. The Ecumenic Age. [New ed.]. Columbia, Mo. ; London: University of Missouri Press, 2000.
MLA引文Voegelin, Eric, 与 Michael Franz. The Ecumenic Age. [New ed.]. University of Missouri Press, 2000.
警告：这些引文格式不一定是100％准确.