Não informado. (1960). American Horticultural Magazine. American Horticultural Society.
Lua i Stíl Chicago (17ú heag.)Não informado. American Horticultural Magazine. Washington: American Horticultural Society, 1960.
Lua MLA (8ú heag.)Não informado. American Horticultural Magazine. American Horticultural Society, 1960.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.