International Union for Conservation of Nature and Natural Resources Threatened Plants Committee, Lucas, G., & Synge, H. (1978). The IUCN plant red data book: Comprising red data sheets on 250 selected plants threatened on a world scale. IUCN.
Παραπομπή σε μορφή Chicago (17η εκδ.)International Union for Conservation of Nature and Natural Resources Threatened Plants Committee, Gren Lucas, και Hugh Synge. The IUCN Plant Red Data Book: Comprising Red Data Sheets on 250 Selected Plants Threatened on a World Scale. Morges: IUCN, 1978.
Παραπομπή σε μορφή MLA (9th εκδ.)International Union for Conservation of Nature and Natural Resources Threatened Plants Committee, et al. The IUCN Plant Red Data Book: Comprising Red Data Sheets on 250 Selected Plants Threatened on a World Scale. IUCN, 1978.