MLA

The Canvassing Macaroni and True British Elector [Graphic]. Published by W.M. Omer July 29th 1788 Little Mays Buildings St. Martins Lane London, 0AD. https://collections.library.yale.edu/catalog/10728496.

APA, 6th edition

The canvassing macaroni and true British elector [graphic]. (0 C.E.). [Satires (Visual works) England 1788, Etchings England London 1788]. Published by W.M. Omer July 29th 1788 Little Mays Buildings St. Martins Lane London. https://collections.library.yale.edu/catalog/10728496.