MLA

Merke, Henri, and printmaker. Hot Cross Bunns, Two a Penny Bunns [Graphic]. Pubd. May 4, 1799, at Ackermann's Gallery, 101 Strand, 0AD. https://collections.library.yale.edu/catalog/15959206.

APA, 6th edition

Merke, H., & printmaker. (0 C.E.). Hot cross bunns, two a penny bunns [graphic] [Cries, Satires (Visual works) England 1799, Etchings England London 1799, Aquatints England London 1799]. Pubd. May 4, 1799, at Ackermann's Gallery, 101 Strand. https://collections.library.yale.edu/catalog/15959206.