Cite

[Duke of Portland] [graphic].

MLA

[Duke of Portland] [Graphic]. publisher not identified, 0AD. https://collections.library.yale.edu/catalog/10724691.

APA, 6th edition

[Duke of Portland] [graphic]. (0 C.E.). [Caricatures England 1783, Etchings England London 1783]. publisher not identified. https://collections.library.yale.edu/catalog/10724691.