Robert Burns (1859). “The Poetical Works and Letters of Robert Burns. With Life. Eight Engravings on Steel. (In this Edition the More Objectionable Passages and Pieces are Omitted.).”, p.81
Pope Francis' address to participants in the Plenary of the Pontifical Council for the Pastoral Care of Migrants and Itinerant People at the Clementine Hall, w2.vatican.va. May 24, 2013.