MLA

The Able Doctor, or, America Swallowing the Bitter Draught [Graphic]. publisher not identified, 0AD. https://collections.library.yale.edu/catalog/10716281.

APA, 6th edition

The able doctor, or, America swallowing the bitter draught [graphic]. (0 C.E.). [Caricatures and cartoons, Satires (Visual works) England 1774, Periodical illustrations, Engravings England London 1774, Etchings England London 1774]. publisher not identified. https://collections.library.yale.edu/catalog/10716281.