MLA

The Phantom!!, or, Prosecutor of Her Majesty [Graphic]. Published October 1820 by John Fairburn, Broadway, Ludgate Hill, London, 0AD. https://collections.library.yale.edu/catalog/16816998.

APA, 6th edition

The phantom!!, or, Prosecutor of Her Majesty [graphic]. (0 C.E.). [Caricatures and cartoons, Satires (Visual works) England 1820, Etchings England London 1820, Soft-ground etchings England London 1820, Annotations (Provenance) 19th century]. Published October 1820 by John Fairburn, Broadway, Ludgate Hill, London. https://collections.library.yale.edu/catalog/16816998.