Não informado. (1973). Scientia horticulturae. International Society for Horticultural Science.
Lua i Stíl Chicago (17ú heag.)Não informado. Scientia Horticulturae. Amsterdam: International Society for Horticultural Science, 1973.
Lua MLA (8ú heag.)Não informado. Scientia Horticulturae. International Society for Horticultural Science, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.