APA (7th ed.) Citation

Gay, J. Polly: An opera. Being the second part of The beggar's opera. Written by Mr. Gay.

Chicago Style (17th ed.) Citation

Gay, John. Polly: An Opera. Being the Second Part of The Beggar's Opera. Written by Mr. Gay.

MLA (8th ed.) Citation

Gay, John. Polly: An Opera. Being the Second Part of The Beggar's Opera. Written by Mr. Gay.

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