APA (7th ed.) Citation

Leroux, G. (2004). The phantom of the opera. Collector's Library.

Chicago Style (17th ed.) Citation

Leroux, Gaston. The Phantom of the Opera. London: Collector's Library, 2004.

MLA (9th ed.) Citation

Leroux, Gaston. The Phantom of the Opera. Collector's Library, 2004.

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