APA-viite (7. p.)
Coppa, F. J. (1999). Controversial concordats: The Vatican's relations with Napoleon, Mussolini, and Hitler. Catholic University of America Press.
Chicago-viite (17. p.)
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-viite (9. p.)
Coppa, Frank J. Controversial Concordats: The Vatican's Relations with Napoleon, Mussolini, and Hitler. Catholic University of America Press, 1999.
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