MLA

Baron, Bernard, 1696-1762, printmaker. Georgius III King of Great Britain dedicated to the Right Honble. Willm. Pitt / [graphic]. [not before 1760]. https://collections.library.yale.edu/catalog/11001116.

APA, 6th edition

Baron, Bernard, 1696-1762, printmaker. ([not before 1760])[Georgius III King of Great Britain dedicated to the Right Honble. Willm. Pitt / [graphic]]. https://collections.library.yale.edu/catalog/11001116.