APA (7th ed.) Citation

Wilder, T., & Ruiz-Werner, J. M. (1971). El octavo día. Aguilar.

Chicago Style (17th ed.) Citation

Wilder, Thornton, and Juan Martín Ruiz-Werner. El Octavo Día. Madrid: Aguilar, 1971.

MLA (9th ed.) Citation

Wilder, Thornton, and Juan Martín Ruiz-Werner. El Octavo Día. Aguilar, 1971.

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