Não informado. (2009). Botany. National Research Council of Canada.
Lua i Stíl Chicago (17ú heag.)Não informado. Botany. Ottawa: National Research Council of Canada, 2009.
Lua MLA (8ú heag.)Não informado. Botany. National Research Council of Canada, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.