APA (7th ed.) Citation

Darwin, C., Desmond, A. J., & Gautrey, P. J. (1992). The Charles Darwin papers. Research Publications International.

Chicago Style (17th ed.) Citation

Darwin, Charles, Adrian J. Desmond, and Peter Jack Gautrey. The Charles Darwin Papers. Woodbridge, Conn.: Research Publications International, 1992.

MLA (9th ed.) Citation

Darwin, Charles, et al. The Charles Darwin Papers. Research Publications International, 1992.