Não informado. (1970). Laitsch Herbarium Publication. Youngstown State University.
Lua i Stíl Chicago (17ú heag.)Não informado. Laitsch Herbarium Publication. Youngstown, Ohio: Youngstown State University, 1970.
Lua MLA (8ú heag.)Não informado. Laitsch Herbarium Publication. Youngstown State University, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.