APA (7th ed.) Citation

Mill, J. S., Robson, J. M., Priestley, F. E. L., & Dryer, D. P. (1969). Essays on ethics, religion and society. University Press [etc.].

Chicago Style (17th ed.) Citation

Mill, John Stuart, John M. Robson, F. E. L. Priestley, and D. P. Dryer. Essays on Ethics, Religion and Society. Toronto [etc.]: University Press [etc.], 1969.

MLA (9th ed.) Citation

Mill, John Stuart, et al. Essays on Ethics, Religion and Society. University Press [etc.], 1969.