APA (7th ed.) Citation

Barker, E., Locke, J., Hume, D., Rousseau, J., & Hopkins, G. (1947). Social contract: Essays by Locke, Hume and Rousseau. Oxford Univ. Press.

Chicago Style (17th ed.) Citation

Barker, Ernest, John Locke, David Hume, Jean-Jacques Rousseau, and Gerard Hopkins. Social Contract: Essays by Locke, Hume and Rousseau. London: Oxford Univ. Press, 1947.

MLA (9th ed.) Citation

Barker, Ernest, et al. Social Contract: Essays by Locke, Hume and Rousseau. Oxford Univ. Press, 1947.