MLA

Corner, John, active 18th century-19th century, printmaker. John Earl of Sandwich [graphic]. [not before 1787]. https://collections.library.yale.edu/catalog/17480297.

APA, 6th edition

Corner, John, active 18th century-19th century, printmaker. ([not before 1787])[John Earl of Sandwich [graphic]]. https://collections.library.yale.edu/catalog/17480297.