International Union for Conservation of Nature and Natural Resources. (1978). The IUCN plant red data book: Comprising red data sheets on 250 selected plants threatened on a world scale.
Chicago-Zitierstil (17. Ausg.)International Union for Conservation of Nature and Natural Resources. The IUCN Plant Red Data Book: Comprising Red Data Sheets on 250 Selected Plants Threatened on a World Scale. Morges, 1978.
MLA-Zitierstil (9. Ausg.)International Union for Conservation of Nature and Natural Resources. The IUCN Plant Red Data Book: Comprising Red Data Sheets on 250 Selected Plants Threatened on a World Scale. 1978.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.