APA (7th ed.) Citation

Marcus, R. B. (1993). Modalities: Philosophical essays. Oxford University Press.

Chicago Style (17th ed.) Citation

Marcus, Ruth Barcan. Modalities: Philosophical Essays. New York: Oxford University Press, 1993.

MLA (9th ed.) Citation

Marcus, Ruth Barcan. Modalities: Philosophical Essays. Oxford University Press, 1993.

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