Não informado. (1959). Studies in art education. National Art Education Association.
Chicago-referens (17:e uppl.)Não informado. Studies in Art Education. Washington: National Art Education Association, 1959.
MLA-referens (8:e uppl.)Não informado. Studies in Art Education. National Art Education Association, 1959.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.