Não informado. (2008). Botany: Current Literature. Bureau of Plant Industry.
Lua i Stíl Chicago (17ú heag.)Não informado. Botany: Current Literature. Washington: Bureau of Plant Industry, 2008.
Lua MLA (8ú heag.)Não informado. Botany: Current Literature. Bureau of Plant Industry, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.