APA (7th ed.) Citation

Darwin, C., Henslow, J. S., & Barlow, N. (1967). Darwin and Henslow: The growth of an idea; letters, 1831-1860. Murray.

Chicago Style (17th ed.) Citation

Darwin, Charles, J. S. Henslow, and Nora Barlow. Darwin and Henslow: The Growth of an Idea; Letters, 1831-1860. [London]: Murray, 1967.

MLA (8th ed.) Citation

Darwin, Charles, et al. Darwin and Henslow: The Growth of an Idea; Letters, 1831-1860. Murray, 1967.