MLA

Wigs [Graphic]. Pubd. accorg. to act, Octr. 12, 1773, by M. Darly, 39 Strand, 0AD. https://collections.library.yale.edu/catalog/16737544.

APA, 6th edition

Wigs [graphic]. (0 C.E.). [Caricatures and cartoons, Caricatures, Satires (Visual works) England 1773, Etchings England London 1773, Watermarks (Paper)]. Pubd. accorg. to act, Octr. 12, 1773, by M. Darly, 39 Strand. https://collections.library.yale.edu/catalog/16737544.