APA (7th ed.) Citation

Locke, J., Barker, E. S., & Rousseau, J. (1947). Social contract: Essays by Locke, Hume and Rousseau. Oxford University Press.

Chicago Style (17th ed.) Citation

Locke, John, Ernest Sir Barker, and Jean-Jacques Rousseau. Social Contract: Essays by Locke, Hume and Rousseau. London: Oxford University Press, 1947.

MLA (8th ed.) Citation

Locke, John, et al. Social Contract: Essays by Locke, Hume and Rousseau. Oxford University Press, 1947.