MLA

Collings, Samuel, and printmaker. The Reforming Peer [Graphic]. publisher not identified, 0AD. https://collections.library.yale.edu/catalog/10939114.

APA, 6th edition

Collings, S., & printmaker. (0 C.E.). The reforming peer [graphic]. [Caricatures and cartoons, Satires (Visual works) England 1794, Periodical illustrations, Stipple engravings England London 1794, Etchings England London 1794]. publisher not identified. https://collections.library.yale.edu/catalog/10939114.