APA

Leroux G., . (1995). The phantom of the Opera. London: Penguin books.

Chicago

Leroux Gaston, . 1995. The phantom of the Opera. London: Penguin books.

Harvard

Leroux G., . (1995). The phantom of the Opera. London: Penguin books.

MLA

Leroux Gaston, . The phantom of the Opera. London: Penguin books. 1995.