Cite

A side box at the opera [graphic].

MLA

A Side Box at the Opera [Graphic]. Pubd. March 15, 1792, by S.W. Fores, No. 3 Piccadilly, 0AD. https://collections.library.yale.edu/catalog/10732747.

APA, 6th edition

A side box at the opera [graphic]. (0 C.E.). [Satires (Visual works) England 1792, Drypoints England London 1792, Etchings England London 1792]. Pubd. March 15, 1792, by S.W. Fores, No. 3 Piccadilly. https://collections.library.yale.edu/catalog/10732747.