Não informado. (1971). Kew Record of Taxonomic Literature Relating to Vascular Plants. Royal Botanic Gardens.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Kew Record of Taxonomic Literature Relating to Vascular Plants. London: Royal Botanic Gardens, 1971.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Kew Record of Taxonomic Literature Relating to Vascular Plants. Royal Botanic Gardens, 1971.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.