APA (7th ed.) Citation

Darwin, C., & Barlow, N. (1946). Charles Darwin and the voyage of the Beagle. Philosophical Library.

Chicago Style (17th ed.) Citation

Darwin, Charles, and Nora Barlow. Charles Darwin and the Voyage of the Beagle. New York: Philosophical Library, 1946.

MLA (8th ed.) Citation

Darwin, Charles, and Nora Barlow. Charles Darwin and the Voyage of the Beagle. Philosophical Library, 1946.