MLA

Rowlandson, Thomas, 1756-1827, printmaker. Harmony [graphic]. [12 August 1785]. https://collections.library.yale.edu/catalog/11791424.

APA, 6th edition

Rowlandson, Thomas, 1756-1827, printmaker. ([12 August 1785])[Harmony [graphic]]. https://collections.library.yale.edu/catalog/11791424.