Não informado. Philosophic Abstracts. Association for Philosophic Research.
Lua i Stíl Chicago (17ú heag.)Não informado. Philosophic Abstracts. New York: Association for Philosophic Research.
Lua MLA (8ú heag.)Não informado. Philosophic Abstracts. Association for Philosophic Research.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.