MLA

Billy the Bamboozler Robbing the Cobler the Portrait of Him Taken Just before He Was Turnd. off. [Graphic]. Publishd. January 9th 1789 by H. Humphries, New Bond Street, London, 0AD. https://collections.library.yale.edu/catalog/10731079.

APA, 6th edition

Billy the Bamboozler robbing the cobler the portrait of him taken just before he was turnd. off. [graphic]. (0 C.E.). [Caricatures and cartoons, Satires (Visual works) England 1789, Etchings England London 1789, Annotations (Provenance), Watermarks (Paper)]. Publishd. January 9th 1789 by H. Humphries, New Bond Street, London. https://collections.library.yale.edu/catalog/10731079.