Richard Whately (2010). “Elements of Rhetoric: Comprising an Analysis of the Laws of Moral Evidence and of Persuasion, with Rules for Argumentative Composition and Elocution”, p.1, SIU Press
Richard Whately, William FITZGERALD (successively Bishop of Cork, Cloyne and Ross, and of Killaloe.) (1853). “Cautions for the times; addressed to the parishioners of a parish in England by their former Rector. Edited and partly written by the Archbishop of Dublin”, p.379