Mary Parker Follett, Pauline Graham (1996). “Mary Parker Follett--prophet of management: a celebration of writings from the 1920s”, Harvard Business Press
Franklin D. Roosevelt's campaign address to the Republican-for-Roosevelt League in New York City (November 3, 1932), as quoted in "The Public Papers and Addresses of Franklin D. Roosevelt, 1928-1932" (p. 857), 1938.