Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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