APA (7th ed.) Citation
Wilde, O., Billington, M., & Wilson, R. (1983). The importance of being earnest. Penguin.
Chicago Style (17th ed.) Citation
Wilde, Oscar, Michael Billington, and Robert Wilson. The Importance of Being Earnest. New York: Penguin, 1983.
MLA (9th ed.) Citation
Wilde, Oscar, et al. The Importance of Being Earnest. Penguin, 1983.
Warning: These citations may not always be 100% accurate.