Não informado. (1967). Journal of research and development in education. University of Georgia, College of Education.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Research and Development in Education. Athens, Ga: University of Georgia, College of Education, 1967.
Lua MLA (8ú heag.)Não informado. Journal of Research and Development in Education. University of Georgia, College of Education, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.