Não informado. (1967). Journal of Educational Thought. University of Calgary, Faculty of Education.
Chicago-referens (17:e uppl.)Não informado. Journal of Educational Thought. Calgary, Canada: University of Calgary, Faculty of Education, 1967.
MLA-referens (8:e uppl.)Não informado. Journal of Educational Thought. University of Calgary, Faculty of Education, 1967.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.