Não informado. (2008). Occasional Papers in Eastern Botany. Southern Appalachian Botanical Society.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Occasional Papers in Eastern Botany. Morgantown, Wa. Va: Southern Appalachian Botanical Society, 2008.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Occasional Papers in Eastern Botany. Southern Appalachian Botanical Society, 2008.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.