Cite

The great Duke of Grafton mortally wounded before the walls of Cork [graphic]

MLA

Grignion, Charles, 1721-1810, printmaker. The great Duke of Grafton mortally wounded before the walls of Cork [graphic]. [1769]. https://collections.library.yale.edu/catalog/10713445.

APA, 6th edition

Grignion, Charles, 1721-1810, printmaker. ([1769])[The great Duke of Grafton mortally wounded before the walls of Cork [graphic]]. https://collections.library.yale.edu/catalog/10713445.