APA (7th ed.) Citation

Wilde, O. (1980). The importance of being earnest (1. publ.). Heinemann.

Chicago Style (17th ed.) Citation

Wilde, Oscar. The Importance of Being Earnest. 1. publ. London: Heinemann, 1980.

MLA (9th ed.) Citation

Wilde, Oscar. The Importance of Being Earnest. 1. publ. Heinemann, 1980.

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