James Davison Hunter (2010). “To Change the World: The Irony, Tragedy, and Possibility of Christianity in the Late Modern World”, p.260, Oxford University Press
"Student Riots", editorial in "The Emporia (Kansas) Gazette" (April 8, 1932); reported in "Forty Years on Main Street" compiled by Russell H. Fitzgibbon, (p. 331), 1937.