Não informado. (1968). Journal of Educational Administration and History. University of Leeds, Museum of Education.
Chicago-referens (17:e uppl.)Não informado. Journal of Educational Administration and History. Leeds, Inglaterra: University of Leeds, Museum of Education, 1968.
MLA-referens (8:e uppl.)Não informado. Journal of Educational Administration and History. University of Leeds, Museum of Education, 1968.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.