Lord Philip Dormer Stanhope Chesterfield, Philip Dormer Stanhope Earl of Chesterfield (1855). “The Works of Lord Chesterfield: Including His Letters to His Son, Etc : to which is Prefixed, an Original Life of the Author”, p.469
William Butler Yeats (2010). “The Collected Works of W.B. Yeats Vol X: Later Article: Uncollected Articles, Reviews, and Radio Broadcasts Written After 1900”, p.169, Simon and Schuster