APA (7th ed.) Citation

Asimov, I., & Giralt Gorina, P. (1998). Fundación e imperio (5a ed.). Plaza & Janés.

Chicago Style (17th ed.) Citation

Asimov, Isaac, and Pilar Giralt Gorina. Fundación E Imperio. 5a ed. Barcelona: Plaza & Janés, 1998.

MLA (9th ed.) Citation

Asimov, Isaac, and Pilar Giralt Gorina. Fundación E Imperio. 5a ed. Plaza & Janés, 1998.

Warning: These citations may not always be 100% accurate.