Não informado. (1969). International Journal of Early Childhood. World Organization for Early Childwood Education.
Lua i Stíl Chicago (17ú heag.)Não informado. International Journal of Early Childhood. Dublin: World Organization for Early Childwood Education, 1969.
Lua MLA (8ú heag.)Não informado. International Journal of Early Childhood. World Organization for Early Childwood Education, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.