MLA

The Retort Humorous [Graphic]. publisher not identified, 0AD. https://collections.library.yale.edu/catalog/10727899.

APA, 6th edition

The retort humorous [graphic]. (0 C.E.). [Periodical illustrations, Engravings England London 1784, Etchings England London 1784]. publisher not identified. https://collections.library.yale.edu/catalog/10727899.