Não informado. (1969). Yearbook of international congress proceedings. Union of International Associations.
Lua i Stíl Chicago (17ú heag.)Não informado. Yearbook of International Congress Proceedings. Brussels: Union of International Associations, 1969.
Lua MLA (8ú heag.)Não informado. Yearbook of International Congress Proceedings. Union of International Associations, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.