Não informado. (1891). Contributions fron the Department of Botany and Rocky Mountain Herbarium. University of Wyoming.
Lua i Stíl Chicago (17ú heag.)Não informado. Contributions Fron the Department of Botany and Rocky Mountain Herbarium. Laramie, Wyo: University of Wyoming, 1891.
Lua MLA (8ú heag.)Não informado. Contributions Fron the Department of Botany and Rocky Mountain Herbarium. University of Wyoming, 1891.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.