Coppa, F. J. (1999). Controversial concordats: The Vatican's relations with Napoleon, Mussolini, and Hitler. Catholic University of America Press.
芝加哥风格引文Coppa, Frank J. Controversial Concordats: The Vatican's Relations with Napoleon, Mussolini, and Hitler. Washington, District of Columbia: Catholic University of America Press, 1999.
MLA引文Coppa, Frank J. Controversial Concordats: The Vatican's Relations with Napoleon, Mussolini, and Hitler. Catholic University of America Press, 1999.
警告：这些引文格式不一定是100％准确.