APA (7th ed.) Citation

Asimov, I., Bermejo, L., & Sarto, J. J. (1983). Yo, robot. Editorial Bruguera.

Chicago Style (17th ed.) Citation

Asimov, Isaac, Luis Bermejo, and J. J. Sarto. Yo, Robot. Barcelona: Editorial Bruguera, 1983.

MLA (9th ed.) Citation

Asimov, Isaac, et al. Yo, Robot. Editorial Bruguera, 1983.