APA (7th ed.) Citation

Asimov, I., Bradbury, R., & Clarke, A. C. (1977). Democracia Electrónica. Luis de Caralt Editor S.A.

Chicago Style (17th ed.) Citation

Asimov, Isaac, Ray Bradbury, and Arthur C. Clarke. Democracia Electrónica. Barcelona, España: Luis de Caralt Editor S.A, 1977.

MLA (9th ed.) Citation

Asimov, Isaac, et al. Democracia Electrónica. Luis de Caralt Editor S.A, 1977.