MLA

What's! This My Girl Nan [Graphic]. Pub. Jany. 1, 1774, by MDarly, 39 Strand, 0AD. https://collections.library.yale.edu/catalog/16737583.

APA, 6th edition

What's! this my girl Nan [graphic]. (0 C.E.). [Satires (Visual works) England 1774, Etchings England London 1774, Watermarks (Paper) L V G.]. Pub. Jany. 1, 1774, by MDarly, 39 Strand. https://collections.library.yale.edu/catalog/16737583.