MLA

The Auspicious Marriage! [Graphic]. A. Hamilton, Jr., 0AD. https://collections.library.yale.edu/catalog/33191042.

APA, 6th edition

The auspicious marriage! [graphic]. (0 C.E.). [Caricatures and cartoons, Periodical illustrations, Satires (Visual works) England 1778, Woodcuts England London 1778]. A. Hamilton, Jr. https://collections.library.yale.edu/catalog/33191042.