APA (7th ed.) Citation

Wilde, O. (1970). The importance of being Ernest. Heinamann Educational Books.

Chicago Style (17th ed.) Citation

Wilde, Oscar. The Importance of Being Ernest. Londres: Heinamann Educational Books, 1970.

MLA (9th ed.) Citation

Wilde, Oscar. The Importance of Being Ernest. Heinamann Educational Books, 1970.