MLA

Sayers, James, 1748-1823, printmaker. Delpini à la Rossi [graphic]. [26 April 1785]. https://collections.library.yale.edu/catalog/16194416.

APA, 6th edition

Sayers, James, 1748-1823, printmaker. ([26 April 1785])[Delpini à la Rossi [graphic]]. https://collections.library.yale.edu/catalog/16194416.