International Union for Conservation of Nature and Natural Resources, World Conservation Monitoring Centre, Walter, K. S., & Gillett, H. J. (1998). 1997 IUCN red list of threatened plants. International Union for Conservation of Nature and Natural Resources.
Παραπομπή σε μορφή Chicago (17η εκδ.)International Union for Conservation of Nature and Natural Resources, World Conservation Monitoring Centre, Kerry Scott Walter, και Harriet J. Gillett. 1997 IUCN Red List of Threatened Plants. Gland, Switzerland ; Cambridge, UK: International Union for Conservation of Nature and Natural Resources, 1998.
Παραπομπή σε μορφή MLA (8th εκδ.)International Union for Conservation of Nature and Natural Resources, et al. 1997 IUCN Red List of Threatened Plants. International Union for Conservation of Nature and Natural Resources, 1998.
