APA-viite (7. p.)

Coppa, F. J. (2008). Politics and the papacy in the modern world. Praeger.

Chicago-viite (17. p.)

Coppa, Frank J. Politics and the Papacy in the Modern World. Westport, Conn.: Praeger, 2008.

MLA-viite (9. p.)

Coppa, Frank J. Politics and the Papacy in the Modern World. Praeger, 2008.