APA (7th ed.) Citation

Darwin, C., De Beer, G., Rowlands, M. J., & Skramovsky, B. M. (1960). Darwin's notebooks on transmutation of species. British Museum (Natural History).

Chicago Style (17th ed.) Citation

Darwin, Charles, Gavin De Beer, M. J. Rowlands, and B. M. Skramovsky. Darwin's Notebooks on Transmutation of Species. London: British Museum (Natural History), 1960.

MLA (8th ed.) Citation

Darwin, Charles, et al. Darwin's Notebooks on Transmutation of Species. British Museum (Natural History), 1960.