APA (7th ed.) Citation

Hume, E. D., Arliss, G., & Christopher, P. o. G. (1939). The mind-changers. Michael Joseph.

Chicago Style (17th ed.) Citation

Hume, E. Douglas, George Arliss, and Prince of Greece Christopher. The Mind-changers. London: Michael Joseph, 1939.

MLA (9th ed.) Citation

Hume, E. Douglas, et al. The Mind-changers. Michael Joseph, 1939.

Warning: These citations may not always be 100% accurate.