Gaya APA

Seven great encyclicals. Leo XIII- Pius XI - Pius XI - Pius XI - Pius XI - John XXIII - John XXIII, with discussion club outline. . (1963). Glen Rock: Paulist Press.

Gaya MLA

Seven great encyclicals. Leo XIII- Pius XI - Pius XI - Pius XI - Pius XI - John XXIII - John XXIII, with discussion club outline. . . Glen Rock: Paulist Press, 1963. Buku.