APA (7th ed.) Citation

Donnelly, P. (2019). Little-known operas. Four Way Books.

Chicago Style (17th ed.) Citation

Donnelly, Patrick. Little-known Operas. Tribeca, New York, NY: Four Way Books, 2019.

MLA (9th ed.) Citation

Donnelly, Patrick. Little-known Operas. Four Way Books, 2019.