APA (7th ed.) Citation

Hayes, J. (1966). An unknown Gainsborough portrait of Edward Duke of Kent.

Chicago Style (17th ed.) Citation

Hayes, John. An Unknown Gainsborough Portrait of Edward Duke of Kent. 1966.

MLA (9th ed.) Citation

Hayes, John. An Unknown Gainsborough Portrait of Edward Duke of Kent. 1966.

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