Não informado. (1902). Yearbook of the National Society for the Study of Education. University of Chicago Press.
Citação do estilo Chicago (17ª ed.)Não informado. Yearbook of the National Society for the Study of Education. Chicago, Ill: University of Chicago Press, 1902.
Citação MLA (8ª ed.)Não informado. Yearbook of the National Society for the Study of Education. University of Chicago Press, 1902.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.