Citação norma APA

Leo XIII, P. (1900). Encyclical letter of our most holy lord, Leo XIII., by divine providence Pope: To all the patriarchs, primates, archbishops and bishops of the Catholic world holding grace and communion with the apostolic see. Concerning Jesus Christ our redeemer. Leo XIII and Apostolic Benediciton. S.I..

Citação norma Chicago

Leo XIII, Pope. Encyclical Letter of Our Most Holy Lord, Leo XIII., by Divine Providence Pope: To All the Patriarchs, Primates, Archbishops and Bishops of the Catholic World Holding Grace and Communion with the Apostolic See. Concerning Jesus Christ Our Redeemer. Leo XIII and Apostolic Benediciton. S.I., 1900.

Citação norma MLA

Leo XIII, Pope. Encyclical Letter of Our Most Holy Lord, Leo XIII., by Divine Providence Pope: To All the Patriarchs, Primates, Archbishops and Bishops of the Catholic World Holding Grace and Communion with the Apostolic See. Concerning Jesus Christ Our Redeemer. Leo XIII and Apostolic Benediciton. S.I., 1900.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.