APA (7th ed.) Citation

Lloyd Webber, A., Hart, C., & Prince, H. (1986). The phantom of the opera. The Really Useful Group Ltd.

Chicago Style (17th ed.) Citation

Lloyd Webber, Andrew, Charles Hart, and Harold Prince. The Phantom of the Opera. London: The Really Useful Group Ltd, 1986.

MLA (9th ed.) Citation

Lloyd Webber, Andrew, et al. The Phantom of the Opera. The Really Useful Group Ltd, 1986.