Não informado. (2009). Conservation. University of Washington.
Lua i Stíl Chicago (17ú heag.)Não informado. Conservation. Seattle, Wash: University of Washington, 2009.
Lua MLA (8ú heag.)Não informado. Conservation. University of Washington, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.