APA (7th ed.) Citation

Wells, H. G., Huxley, J., & Wells, G. P. (1931). The Science of life. Cassell and company limited.

Chicago Style (17th ed.) Citation

Wells, H. G., Julian Huxley, and G. P. Wells. The Science of Life. London [etc.]: Cassell and company limited, 1931.

MLA (9th ed.) Citation

Wells, H. G., et al. The Science of Life. Cassell and company limited, 1931.