APA

Iohannes Paulus PP, . (1998). Encyclical letter "Fides et Ratio" of the Supreme Pontiff John Paul II to the bishops of the Catholic Church on the relationship between faith and reason. Vatican City: Libreria Editrice Vaticana.

Chicago

Iohannes Paulus PP, . 1998. Encyclical letter "Fides et Ratio" of the Supreme Pontiff John Paul II to the bishops of the Catholic Church on the relationship between faith and reason. Vatican City: Libreria Editrice Vaticana.

Harvard

Iohannes Paulus PP, . (1998). Encyclical letter "Fides et Ratio" of the Supreme Pontiff John Paul II to the bishops of the Catholic Church on the relationship between faith and reason. Vatican City: Libreria Editrice Vaticana.

MLA

Iohannes Paulus PP, . Encyclical letter "Fides et Ratio" of the Supreme Pontiff John Paul II to the bishops of the Catholic Church on the relationship between faith and reason. Vatican City: Libreria Editrice Vaticana. 1998.