MLA

The Royal Janus, or, Two Faces under a Hood [Graphic]. Pubd. as [the] act directs Jany 4, 1784 by E.D. Achery, St James's Street, 0AD. https://collections.library.yale.edu/catalog/10727364.

APA, 6th edition

The royal Janus, or, Two faces under a hood [graphic]. (0 C.E.). [Satires (Visual works) England 1784, Political cartoons England 1784, Etchings England London 1784]. Pubd. as [the] act directs Jany 4, 1784 by E.D. Achery, St James's Street. https://collections.library.yale.edu/catalog/10727364.