APA (7th ed.) Citation

Hume, D. ., Locke, J. ., & Rousseau, J.. (1971). Social contract. Oxford University Press.

Chicago Style (17th ed.) Citation

Hume, David , John Locke, and Jean-Jacques Rousseau. Social Contract. London: Oxford University Press, 1971.

MLA (9th ed.) Citation

Hume, David , et al. Social Contract. Oxford University Press, 1971.