United States. President (1974-1977 : Ford), Gerald R. Ford (1979). “Gerald R. Ford: Containing the Public Messages, Speeches, and Statements of the President”
Philip Dormer Stanhope (4th earl of Chesterfield.), Charles Caleb Colton (1861). “Lord Chesterfield's advice to his son on men and manners. To which are added, selections from Colton's 'Lacon'.”, p.191