A calm [graphic] / etched by Js. Gillray.
MLA
Gillray, James, 1756-1815, printmaker. A calm [graphic] / etched by Js. Gillray.. 1810 May 16. https://collections.library.yale.edu/catalog/11861219.
APA, 6th edition
Gillray, James, 1756-1815, printmaker. (1810 May 16)[A calm [graphic] / etched by Js. Gillray.]. https://collections.library.yale.edu/catalog/11861219.