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Lua i Stíl Chicago (17ú heag.)Postpositivism and the Naturalist Paradigm. [lugar de publicación no identificado]: Sage Publications, 1985.
Lua MLA (9ú heag.)Postpositivism and the Naturalist Paradigm. Sage Publications, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.