APA-referens (7:e uppl.)

Catholic Church. Pope & Schaefer, M. C. (1936). A papal peace mosaic, 1878-1936: Excerpts from the messages of Popes Leo XIII, Pius X, Benedict XV and Pius XI. The Paulist Press.

Chicago-referens (17:e uppl.)

Catholic Church. Pope och Mary Catherine Schaefer. A Papal Peace Mosaic, 1878-1936: Excerpts from the Messages of Popes Leo XIII, Pius X, Benedict XV and Pius XI. New York: The Paulist Press, 1936.

MLA-referens (8:e uppl.)

Catholic Church. Pope och Mary Catherine Schaefer. A Papal Peace Mosaic, 1878-1936: Excerpts from the Messages of Popes Leo XIII, Pius X, Benedict XV and Pius XI. The Paulist Press, 1936.