Não informado. (2008). Threatened Plants Newsletter. International Union for Conservation of Nature and Natural Resources.
Chicago-viite (17. p.)Não informado. Threatened Plants Newsletter. Kew, Inglaterra: International Union for Conservation of Nature and Natural Resources, 2008.
MLA-viite (8. p.)Não informado. Threatened Plants Newsletter. International Union for Conservation of Nature and Natural Resources, 2008.
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