Não informado. (2018). Orchid Weekly. Horticultural Publications.
Lua i Stíl Chicago (17ú heag.)Não informado. Orchid Weekly. Coconut Grove, Fla: Horticultural Publications, 2018.
Lua MLA (8ú heag.)Não informado. Orchid Weekly. Horticultural Publications, 2018.
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