APA (7th ed.) Citation

Sullivan, A., Reed, J., Potter, P., Masterson, V., Palmer, C., Godfrey, I., & Gilbert, W. S. (1968). The pirates of Penzance. London.

Chicago Style (17th ed.) Citation

Sullivan, Arthur, John Reed, Philip Potter, Valerie Masterson, Christine Palmer, Isidore Godfrey, and W. S. Gilbert. The Pirates of Penzance. London: London, 1968.

MLA (9th ed.) Citation

Sullivan, Arthur, et al. The Pirates of Penzance. London, 1968.