APA (7th ed.) Citation

Wells, H. G., Huxley, J., & Wells, G. P. (1934). The living body. Cassell.

Chicago Style (17th ed.) Citation

Wells, H. G., Julian Huxley, and G. P. Wells. The Living Body. London: Cassell, 1934.

MLA (8th ed.) Citation

Wells, H. G., et al. The Living Body. Cassell, 1934.