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Lua i Stíl Chicago (17ú heag.)Geulen, Christian. "Reply: Christian Geulen." Contributions to the History of Concepts 2012.
Lua MLA (8ú heag.)Geulen, Christian. "Reply: Christian Geulen." Contributions to the History of Concepts, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.