MLA

Woodward, G. M. (George Moutard), approximately 1760-1809, artist. Political impatience!! [art original]. [ca. 1793]. https://collections.library.yale.edu/catalog/10957297.

APA, 6th edition

Woodward, G. M. (George Moutard), approximately 1760-1809, artist. ([ca. 1793])[Political impatience!! [art original]]. https://collections.library.yale.edu/catalog/10957297.