MLA

[Johnson Sleeping, Sir John Hawkins Awaiting His Arousal] [Graphic]. publisher not identified, 0AD. https://collections.library.yale.edu/catalog/33191290.

APA, 6th edition

[Johnson sleeping, Sir John Hawkins awaiting his arousal] [graphic]. (0 C.E.). [Caricatures and cartoons, Caricatures, Satires (Visual works) England 1786, Etchings England 1786]. publisher not identified. https://collections.library.yale.edu/catalog/33191290.