APA (7th ed.) Citation

Darwin, C., & Keynes, R. D. (1988). Charles Darwin's Beagle diary. Cambridge University Press.

Chicago Style (17th ed.) Citation

Darwin, Charles, and R. D. Keynes. Charles Darwin's Beagle Diary. Cambridge [Cambridgeshire] ; New York: Cambridge University Press, 1988.

MLA (9th ed.) Citation

Darwin, Charles, and R. D. Keynes. Charles Darwin's Beagle Diary. Cambridge University Press, 1988.