MLA

The Night Mare [Graphic]. Pub. Augst. 13, 1795, by S.W. Fores, No. 50 Piccadilly, the corner of Sackville St., 0AD. https://collections.library.yale.edu/catalog/11105880.

APA, 6th edition

The night mare [graphic]. (0 C.E.). [Caricatures and cartoons, Satires (Visual works) England 1795, Etchings England London 1795, Watermarks (Paper) G R., Publishers' advertisements]. Pub. Augst. 13, 1795, by S.W. Fores, No. 50 Piccadilly, the corner of Sackville St. https://collections.library.yale.edu/catalog/11105880.