Cita APA (7a ed.)

Sale, C. J., Friedman, B., & Wilson, G. (1984). The expanding artificial ecosystems (1. publ. 1981, repr.). Longman Cheshire.

Cita Chicago Style (17a ed.)

Sale, Colin J., Ben Friedman, y Graeme Wilson. The Expanding Artificial Ecosystems. 1. publ. 1981, repr. Melbourne: Longman Cheshire, 1984.

Cita MLA (9a ed.)

Sale, Colin J., et al. The Expanding Artificial Ecosystems. 1. publ. 1981, repr. Longman Cheshire, 1984.