MLA

Sir Gregory Gigg [Graphic]. Publish'd March 25, 1802, by Ino. Harris, No. 3 Sweetings Alley, Cornhill, & 8 Old Broad Street, 0AD. https://collections.library.yale.edu/catalog/15813560.

APA, 6th edition

Sir Gregory Gigg [graphic]. (0 C.E.). [Satires (Visual works) England 1782, Etchings England London 1802, Mezzotints England London 1802, Watermarks (Paper)]. Publish'd March 25, 1802, by Ino. Harris, No. 3 Sweetings Alley, Cornhill, & 8 Old Broad Street. https://collections.library.yale.edu/catalog/15813560.