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.621
"The Best Defense: The Courtroom Confrontations of America's Most Outspoken Lawyer of Last Resort - the Lawyer Who Won the Claus von Bulow Appeal". Book by Alan Dershowitz, 1982.