APA (7th ed.) Citation

Darwin, C. R., Burkhardt, F., & Rubio Díez, A. M. (1999). Cartas de Charles Darwin (1825-1859). Cambridge University Press.

Chicago Style (17th ed.) Citation

Darwin, Charles Robert, Frederick Burkhardt, and Ana María Rubio Díez. Cartas De Charles Darwin (1825-1859). Madrid: Cambridge University Press, 1999.

MLA (9th ed.) Citation

Darwin, Charles Robert, et al. Cartas De Charles Darwin (1825-1859). Cambridge University Press, 1999.