MLA

Penelope Pigtail The Amorous Gauger. [Graphic]. Published 1st Jan., 1791, by A. Hamilton Junr. Fleet Street, 0AD. https://collections.library.yale.edu/catalog/10732522.

APA, 6th edition

Penelope Pigtail The amorous gauger. [graphic]. (0 C.E.). [Portrait prints, Periodical illustrations, Etchings England London 1791, Stipple engravings England London 1791]. Published 1st Jan., 1791, by A. Hamilton Junr. Fleet Street. https://collections.library.yale.edu/catalog/10732522.