Grace before meat, or, A peep at Lord Peter's [graphic].
MLA
Grace before Meat, or, A Peep at Lord Peter's [Graphic]. W. M. Humphrey, No. 227 Strand, 0AD. https://collections.library.yale.edu/catalog/11810237.
APA, 6th edition
Grace before meat, or, A peep at Lord Peter's [graphic]. (0 C.E.). [Etchings--England--London--1778., Satires (Visual works)--England--1778.]. W. M. Humphrey, No. 227 Strand. https://collections.library.yale.edu/catalog/11810237.