Não informado. (2011). Monographs of the Western North American Naturalist. Brigham Young University, Monte L. Bean Life Science Museum.
Lua i Stíl Chicago (17ú heag.)Não informado. Monographs of the Western North American Naturalist. Provo, Utah: Brigham Young University, Monte L. Bean Life Science Museum, 2011.
Lua MLA (8ú heag.)Não informado. Monographs of the Western North American Naturalist. Brigham Young University, Monte L. Bean Life Science Museum, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.