Não informado. (1976). Important for the Future. United Nations, Institute for Training and Research.
Lua i Stíl Chicago (17ú heag.)Não informado. Important for the Future. New York: United Nations, Institute for Training and Research, 1976.
Lua MLA (8ú heag.)Não informado. Important for the Future. United Nations, Institute for Training and Research, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.