Não informado. (2002). Western North American Naturalist. Brigham Young University.
Lua i Stíl Chicago (17ú heag.)Não informado. Western North American Naturalist. Provo, Utah: Brigham Young University, 2002.
Lua MLA (8ú heag.)Não informado. Western North American Naturalist. Brigham Young University, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.