MLA

The Arch-Duke [Graphic]. Pubd. Novr. 15th, 1796, by H. Humphrey, New Bond Street, 0AD. https://collections.library.yale.edu/catalog/10952991.

APA, 6th edition

The Arch-duke [graphic]. (0 C.E.). [Portraits, Satires (Visual works) England 1796, Etchings England London 1796, Watermarks (Paper) J. Whatman 1808]. Pubd. Novr. 15th, 1796, by H. Humphrey, New Bond Street. https://collections.library.yale.edu/catalog/10952991.