Não informado. (2011). European Journal of Glass Science and Technology. Society of Glass Technology.
Lua i Stíl Chicago (17ú heag.)Não informado. European Journal of Glass Science and Technology. Sheffield, Inglaterra: Society of Glass Technology, 2011.
Lua MLA (8ú heag.)Não informado. European Journal of Glass Science and Technology. Society of Glass Technology, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.