Não informado. (1961). Chronica Horticulturae. International Society for Horticultural Science.
Lua i Stíl Chicago (17ú heag.)Não informado. Chronica Horticulturae. Wageningen, Holanda: International Society for Horticultural Science, 1961.
Lua MLA (8ú heag.)Não informado. Chronica Horticulturae. International Society for Horticultural Science, 1961.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.