Não informado. (1997). Journal of the Torrey Botanical Society. Torrey Botanical Society.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of the Torrey Botanical Society. Lawrence, Kan: Torrey Botanical Society, 1997.
Lua MLA (8ú heag.)Não informado. Journal of the Torrey Botanical Society. Torrey Botanical Society, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.