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Lua i Stíl Chicago (17ú heag.)World Resources Institute. World Resources, 1992-93: A Report. New York: Oxford University Press, 1992.
Lua MLA (9ú heag.)World Resources Institute. World Resources, 1992-93: A Report. Oxford University Press, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.