MLA

The Conference [Graphic]. publisher not identified, 0AD. https://collections.library.yale.edu/catalog/10713395.

APA, 6th edition

The conference [graphic]. (0 C.E.). [Caricatures and cartoons, Satires (Visual works) England 1769, Etchings England London 1769, Broadsides England 1769, Watermarks (Paper)]. publisher not identified. https://collections.library.yale.edu/catalog/10713395.