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Lua i Stíl Chicago (17ú heag.)Ihde, Don. Technics and Praxis. Dordrecht, Holland: D. Reidel Publishing Company, 1979.
Lua MLA (9ú heag.)Ihde, Don. Technics and Praxis. D. Reidel Publishing Company, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.