APA (7th ed.) Citation

Puccini, G., Fucikova, R., & James, J. A. Madame Butterfly. Purple Bear Books.

Chicago Style (17th ed.) Citation

Puccini, Giacomo, Renata Fucikova, and J. Alison James. Madame Butterfly. NY: Purple Bear Books.

MLA (9th ed.) Citation

Puccini, Giacomo, et al. Madame Butterfly. Purple Bear Books.