Não informado. (1972). Advances in educational psychology. University of London Press.
Chicago-referens (17:e uppl.)Não informado. Advances in Educational Psychology. London: University of London Press, 1972.
MLA-referens (8:e uppl.)Não informado. Advances in Educational Psychology. University of London Press, 1972.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.