APA (7th ed.) Citation

Villanueva, A. J. L., & Baes, J. Maria Y Marta: A chamber opera.

Chicago Style (17th ed.) Citation

Villanueva, Alexander John L., and Jonas Baes. Maria Y Marta: A Chamber Opera.

MLA (9th ed.) Citation

Villanueva, Alexander John L., and Jonas Baes. Maria Y Marta: A Chamber Opera.

Warning: These citations may not always be 100% accurate.