APA (7th ed.) Citation

Leroux, G. (1994). The phantom of the opera. Penguin Group.

Chicago Style (17th ed.) Citation

Leroux, Gaston. The Phantom of the Opera. London: Penguin Group, 1994.

MLA (8th ed.) Citation

Leroux, Gaston. The Phantom of the Opera. Penguin Group, 1994.

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