Não informado. (1961). International Journal of Air and Water Pollution. Pergamon Press.
Lua i Stíl Chicago (17ú heag.)Não informado. International Journal of Air and Water Pollution. Oxford, Inglaterra: Pergamon Press, 1961.
Lua MLA (8ú heag.)Não informado. International Journal of Air and Water Pollution. Pergamon Press, 1961.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.