APA (7th ed.) Citation

Wells, S. M. (1983). The IUCN invertebrate red data book. International Union for Conservation of Nature and Natural Resources.

Chicago Style (17th ed.) Citation

Wells, Susan M. The IUCN Invertebrate Red Data Book. Gland, Switzerland: International Union for Conservation of Nature and Natural Resources, 1983.

MLA (9th ed.) Citation

Wells, Susan M. The IUCN Invertebrate Red Data Book. International Union for Conservation of Nature and Natural Resources, 1983.