APA (7th ed.) Citation

Gay, J. The beggar's opera: Written by Mr. Gay (The seventh edition.).

Chicago Style (17th ed.) Citation

Gay, John. The Beggar's Opera: Written by Mr. Gay. The seventh edition.

MLA (9th ed.) Citation

Gay, John. The Beggar's Opera: Written by Mr. Gay. The seventh edition.

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