MLA

Tomkins, Peltro William, 1759-1840, printmaker. George the Third by the grace of God, of the United Kingdom of Great Britain & Ireland ... / [graphic]. [21 January 1801]. https://collections.library.yale.edu/catalog/10955256.

APA, 6th edition

Tomkins, Peltro William, 1759-1840, printmaker. ([21 January 1801])[George the Third by the grace of God, of the United Kingdom of Great Britain & Ireland ... / [graphic]]. https://collections.library.yale.edu/catalog/10955256.