MLA

Newton, Richard, 1777-1798, printmaker. A night mare [graphic]. [26 October 1794]. https://collections.library.yale.edu/catalog/10939148.

APA, 6th edition

Newton, Richard, 1777-1798, printmaker. ([26 October 1794])[A night mare [graphic]]. https://collections.library.yale.edu/catalog/10939148.