APA (7th ed.) Citation

Heartz, D., & Bauman, T. (1990). Mozart's operas. University of California Press.

Chicago Style (17th ed.) Citation

Heartz, Daniel, and Thomas Bauman. Mozart's Operas. Berkeley: University of California Press, 1990.

MLA (9th ed.) Citation

Heartz, Daniel, and Thomas Bauman. Mozart's Operas. University of California Press, 1990.