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Lua i Stíl Chicago (17ú heag.)Spier, Jeffrey. A Catalogue of the Calouste Gulbenkian Collection of Gems. Calouste Gulbenkian Foundation, 2001.
Lua MLA (8ú heag.)Spier, Jeffrey. A Catalogue of the Calouste Gulbenkian Collection of Gems. Calouste Gulbenkian Foundation, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.