Catholic Church. Pope (1978-2005 : John Paul II), John Paul II, P., & Donders, J. G. (1996). The encyclicals in everyday language. Orbis Books.
Lua i Stíl Chicago (17ú heag.)Catholic Church. Pope (1978-2005 : John Paul II), Pope John Paul II, agus Joseph G. Donders. The Encyclicals in Everyday Language. Maryknoll, N.Y.: Orbis Books, 1996.
Lua MLA (8ú heag.)Catholic Church. Pope (1978-2005 : John Paul II), et al. The Encyclicals in Everyday Language. Orbis Books, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.