Não informado. (1902). Yearbook of the National Society for the Study of Education. University of Chicago Press.
Chicago-referens (17:e uppl.)Não informado. Yearbook of the National Society for the Study of Education. Chicago, Ill: University of Chicago Press, 1902.
MLA-referens (8:e uppl.)Não informado. Yearbook of the National Society for the Study of Education. University of Chicago Press, 1902.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.