APA (7th ed.) Citation

Wilde, O. (2004). The importance of being earnest ([complete and unabr.], 27. [reprint].). Penguin Books.

Chicago Style (17th ed.) Citation

Wilde, Oscar. The Importance of Being Earnest. [complete and unabr.], 27. [reprint]. London u.a: Penguin Books, 2004.

MLA (9th ed.) Citation

Wilde, Oscar. The Importance of Being Earnest. [complete and unabr.], 27. [reprint]. Penguin Books, 2004.