Catholic Church. Pope (1978-2005 : John Paul II) & John Paul II, P. (1996). The Encyclicals of John Paul II. Our Sunday Visitor.
Lua i Stíl Chicago (17ú heag.)Catholic Church. Pope (1978-2005 : John Paul II) agus Pope John Paul II. The Encyclicals of John Paul II. Huntington, Ind.: Our Sunday Visitor, 1996.
Lua MLA (8ú heag.)Catholic Church. Pope (1978-2005 : John Paul II) agus Pope John Paul II. The Encyclicals of John Paul II. Our Sunday Visitor, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.