A man of importance [graphic] / Js. Gillray ad vivam fect.
MLA
Gillray, James, 1756-1815, printmaker. A man of importance [graphic] / Js. Gillray ad vivam fect.. 1799 May 16. https://collections.library.yale.edu/catalog/11860972.
APA, 6th edition
Gillray, James, 1756-1815, printmaker. (1799 May 16)[A man of importance [graphic] / Js. Gillray ad vivam fect.]. https://collections.library.yale.edu/catalog/11860972.