Cite

Grace before meat, or, A peep at Lord Peter's [graphic].

MLA

Grace before Meat, or, A Peep at Lord Peter's [Graphic]. Sold by W. Humphrey, No. 227 Strand, 0AD. https://collections.library.yale.edu/catalog/10723214.

APA, 6th edition

Grace before meat, or, A peep at Lord Peter's [graphic]. (0 C.E.). [Caricatures and cartoons, Satires (Visual works) England 1778, Etchings England London 1778]. Sold by W. Humphrey, No. 227 Strand. https://collections.library.yale.edu/catalog/10723214.