APA (7th ed.) Citation
Dumas, A., & Coward, D. (1993). Twenty years after. Oxford University Press.
Chicago Style (17th ed.) Citation
Dumas, Alexandre, and David Coward. Twenty Years After. Oxford: Oxford University Press, 1993.
MLA (9th ed.) Citation
Dumas, Alexandre, and David Coward. Twenty Years After. Oxford University Press, 1993.
Warning: These citations may not always be 100% accurate.