MLA

Remarkable Characters at Mrs. Cornellys Masquerade [Graphic]. publisher not identified, 0AD. https://collections.library.yale.edu/catalog/10713541.

APA, 6th edition

Remarkable characters at Mrs. Cornellys masquerade [graphic]. (0 C.E.). [Caricatures and cartoons, Satires (Visual works) England 1770, Etchings England London 1770, Periodical illustrations]. publisher not identified. https://collections.library.yale.edu/catalog/10713541.