APA (7th ed.) Citation

Jones, G. E. (1987). The conservation of ecosystems and species. Croom Helm.

Chicago Style (17th ed.) Citation

Jones, Gareth E. The Conservation of Ecosystems and Species. London ; New York: Croom Helm, 1987.

MLA (8th ed.) Citation

Jones, Gareth E. The Conservation of Ecosystems and Species. Croom Helm, 1987.