MLA

Sayers, James, 1748-1823, printmaker. [Colonel Barré] [graphic]. [17 June 1782]. https://collections.library.yale.edu/catalog/16194359.

APA, 6th edition

Sayers, James, 1748-1823, printmaker. ([17 June 1782])[[Colonel Barré] [graphic]]. https://collections.library.yale.edu/catalog/16194359.