APA (7th ed.) Citation

Simon, N. (1993). The Guinness guide to nature in danger: Threatened habitats and species. Guinness Publishing Ltd.

Chicago Style (17th ed.) Citation

Simon, Noel. The Guinness Guide to Nature in Danger: Threatened Habitats and Species. Enfield, Middlesex, England: Guinness Publishing Ltd, 1993.

MLA (9th ed.) Citation

Simon, Noel. The Guinness Guide to Nature in Danger: Threatened Habitats and Species. Guinness Publishing Ltd, 1993.