MLA

Political Checkmate [Graphic]. Publish'd by J. Field, 65 Quadrant, 1829. https://collections.library.yale.edu/catalog/11128838.

APA, 6th edition

Political checkmate [graphic]. (1829). [Caricatures and cartoons, Satires (Visual works) England 1829, Etchings England London 1829, Annotations (Provenance) 19th century]. Publish'd by J. Field, 65 Quadrant. https://collections.library.yale.edu/catalog/11128838.