Cite

His Most Sacred Majesty, George III, King of Great Britain, &c. [graphic]

MLA

Pether, William, 1731-1821, printmaker. His Most Sacred Majesty, George III, King of Great Britain, &c. [graphic]. [1762]. https://collections.library.yale.edu/catalog/10955252.

APA, 6th edition

Pether, William, 1731-1821, printmaker. ([1762])[His Most Sacred Majesty, George III, King of Great Britain, &c. [graphic]]. https://collections.library.yale.edu/catalog/10955252.