MLA

Williams, Charles, active 1797-1830, printmaker. Retrenchment, or, John Bull routing his rapacious servants [graphic].. [approximately September 1819]. https://collections.library.yale.edu/catalog/16192628.

APA, 6th edition

Williams, Charles, active 1797-1830, printmaker. ([approximately September 1819])[Retrenchment, or, John Bull routing his rapacious servants [graphic].]. https://collections.library.yale.edu/catalog/16192628.