Catholic Church. Pope (1978-2005 : John Paul II), United States Catholic Conference, & John Paul II, P. (1994). Letter of the Pope to children in the year of the family: Letter, December 13, 1994. Office for Publishing and Promotion Services, United States Catholic Conference ; Libreria editrice vaticana.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Catholic Church. Pope (1978-2005 : John Paul II), United States Catholic Conference, và Pope John Paul II. Letter of the Pope to Children in the Year of the Family: Letter, December 13, 1994. Washington, D.C. : Vatican City: Office for Publishing and Promotion Services, United States Catholic Conference ; Libreria editrice vaticana, 1994.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Catholic Church. Pope (1978-2005 : John Paul II), et al. Letter of the Pope to Children in the Year of the Family: Letter, December 13, 1994. Office for Publishing and Promotion Services, United States Catholic Conference ; Libreria editrice vaticana, 1994.