Cita APA (7a ed.)

Gillett, M., Hill, M., & Skinner, M. (2005). Ecosystems (1. publ.). Hodder Murray.

Cita Chicago Style (17a ed.)

Gillett, Meg, Michael Hill, y Malcolm Skinner. Ecosystems. 1. publ. London: Hodder Murray, 2005.

Cita MLA (9a ed.)

Gillett, Meg, et al. Ecosystems. 1. publ. Hodder Murray, 2005.