Stafford Cripps's Speech in the House of Commons opposing the National Government's decision to expand the Royal Air Force, api.parliament.uk. July 30, 1934.
"The Intelligent Investor: The Classic Text on Value Investing". Book by Benjamin Graham. Chapter I, What the Intelligent Investor Can Accomplish, p. 17, 1949.
"The Intelligent Investor: The Classic Text on Value Investing". Book by Benjamin Graham, Chapter II, The Investor and Stock-Market Fluctuations, p. 41, 1949.