APA (7th ed.) Citation

Wilde, O. (1990). The importance of being earnest (11. impression.). Longman.

Chicago Style (17th ed.) Citation

Wilde, Oscar. The Importance of Being Earnest. 11. impression. Burnt Mill: Longman, 1990.

MLA (9th ed.) Citation

Wilde, Oscar. The Importance of Being Earnest. 11. impression. Longman, 1990.

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