APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Keynes, Richard Darwin. Charles Darwin's Beagle Diary. New York: Cambridge University Press, 1988.

MLA (9th ed.) Citation

Keynes, Richard Darwin. Charles Darwin's Beagle Diary. Cambridge University Press, 1988.