Gill, K. E., "Hazel Joyce Harrison (1905–1970)", Australian Dictionary of Biography, Canberra: National Centre of Biography, Australian National University, retrieved 30 October 2023
Trotter, Wilfred. Instincts of the herd in peace and war 1916–1919, London, Keynes Press, 1985." Medical History 31(1): 113–4.Jordan, E. (1909). "Herd Instinct and its Bearing on the Psychology of Civilized Man". Psychological Bulletin. 6 (12): 420–421. doi:10.1037/h0066945.
Hugh Moreton's witness statement at the Witness Seminar (2009) about the History of Child and Adolescent Psychiatry 1960–1990 at Yorkhill Glasgow: [3]Archived 4 July 2013 at the Wayback Machine p. 7. Retrieved 26 December 2016
Hugh Moreton's witness statement at the Witness Seminar (2009) about the History of Child and Adolescent Psychiatry 1960–1990 at Yorkhill Glasgow: [3]Archived 4 July 2013 at the Wayback Machine p. 7. Retrieved 26 December 2016