Krieg, R. A. (1992). Karl Adam: Catholicism in German culture. University of Notre Dame Press.
芝加哥风格引文Krieg, Robert A. Karl Adam: Catholicism in German Culture. Notre Dame: University of Notre Dame Press, 1992.
MLA引文Krieg, Robert A. Karl Adam: Catholicism in German Culture. University of Notre Dame Press, 1992.
警告：这些引文格式不一定是100％准确.