APA Citation

International Union for Conservation of Nature and Natural Resources., International Union for Conservation of Nature and Natural Resources. Threatened Plants Committee., Lucas, G., & Synge, H. (1978). The IUCN plant red data book: Comprising ... 250 selected plants threatened on a world scale. Morges, Switzerland: IUCN.

Chicago Style Citation

International Union for Conservation of Nature and Natural Resources., International Union for Conservation of Nature and Natural Resources. Threatened Plants Committee, Gren Lucas, and Hugh Synge. The IUCN Plant Red Data Book: Comprising ... 250 Selected Plants Threatened On a World Scale. Morges, Switzerland: IUCN, 1978.

MLA Citation

International Union for Conservation of Nature and Natural Resources., International Union for Conservation of Nature and Natural Resources. Threatened Plants Committee, Gren Lucas, and Hugh Synge. The IUCN Plant Red Data Book: Comprising ... 250 Selected Plants Threatened On a World Scale. Morges, Switzerland: IUCN, 1978.