Cite

I'm the thing, a'n't I? [graphic].

MLA

I'm The Thing, a'n't I? [Graphic]. Printed for & sold by Bowles & Carver, No. 69 St. Paul's Church Yard, London, 0AD. https://collections.library.yale.edu/catalog/16192352.

APA, 6th edition

I'm the thing, a'n't I? [graphic]. (0 C.E.). [Satires (Visual works) England 1791, Mezzotints England London 1791]. Printed for & sold by Bowles & Carver, No. 69 St. Paul's Church Yard, London. https://collections.library.yale.edu/catalog/16192352.