"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.
Thomas Stephen Szasz (1997). “The Manufacture of Madness: A Comparative Study of the Inquisition and the Mental Health Movement”, p.168, Syracuse University Press
"Show 33 - Revolt of the Fat Angel: American musicians respond to the British invaders, Part 1". Interview on radio documentary series "Pop Chronicles", digital.library.unt.edu. February 14, 1968.