APA (7th ed.) Citation

Shakepeare, W., Claybourne, A., & Costa, J. (2006). Romeo & Juliet. Usborne Publishing Ltd..

Chicago Style (17th ed.) Citation

Shakepeare, William, Anna Claybourne, and Jana Costa. Romeo & Juliet. London: Usborne Publishing Ltd., 2006.

MLA (9th ed.) Citation

Shakepeare, William, et al. Romeo & Juliet. Usborne Publishing Ltd., 2006.