APA (7th ed.) Citation

Darwin, C., Burkhardt, F., & Secord, J. A. (2017). The correspondence of Charles Darwin. Cambridge University Press.

Chicago Style (17th ed.) Citation

Darwin, Charles, Frederick Burkhardt, and James A. Secord. The Correspondence of Charles Darwin. Cambridge: Cambridge University Press, 2017.

MLA (9th ed.) Citation

Darwin, Charles, et al. The Correspondence of Charles Darwin. Cambridge University Press, 2017.