Ross, R. J. (1976). Beleaguered tower: The dilemma of political Catholicism in Wilhelmine Germany. University of Notre Dame Press.
芝加哥风格引文Ross, Ronald J. Beleaguered Tower: The Dilemma of Political Catholicism in Wilhelmine Germany. Notre Dame: University of Notre Dame Press, 1976.
MLA引文Ross, Ronald J. Beleaguered Tower: The Dilemma of Political Catholicism in Wilhelmine Germany. University of Notre Dame Press, 1976.
警告：这些引文格式不一定是100％准确.