MLA

Gillray, James, 1756-1815, printmaker. The loyal address!, or, The procession of the Hampshire-hogs from Botley to St. James's [graphic]. [20 October 1808]. https://collections.library.yale.edu/catalog/11858970.

APA, 6th edition

Gillray, James, 1756-1815, printmaker. ([20 October 1808])[The loyal address!, or, The procession of the Hampshire-hogs from Botley to St. James's [graphic]]. https://collections.library.yale.edu/catalog/11858970.