Urban, Wayne J. “New Directions in The Historical Study of Teacher Unionism”. Historical Studies in Education / Revue d’histoire de l’éducation 2, no. 1 (May 1, 1990): 1-15. Accessed April 19, 2024. https://historicalstudiesineducation.ca/hse/index.php/edu_hse-rhe/article/view/1029.