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Lua i Stíl Chicago (17ú heag.)A History of the Oratorio. Chapel Hill: The University North Carolina Press, 1998.
Lua MLA (8ú heag.)A History of the Oratorio. The University North Carolina Press, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.