APA (7th ed.) Citation

Posner, S., Millen, J., & Delibes, L. (1949). Coppelia: The story of the ballet (4th ed.). A. & C. Black.

Chicago Style (17th ed.) Citation

Posner, Sandy, Joyce Millen, and Léo Delibes. Coppelia: The Story of the Ballet. 4th ed. London: A. & C. Black, 1949.

MLA (8th ed.) Citation

Posner, Sandy, et al. Coppelia: The Story of the Ballet. 4th ed. A. & C. Black, 1949.