Não informado. (1959). Studies in art education. National Art Education Association.
Lua i Stíl Chicago (17ú heag.)Não informado. Studies in Art Education. Washington: National Art Education Association, 1959.
Lua MLA (8ú heag.)Não informado. Studies in Art Education. National Art Education Association, 1959.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.