An excrescence, a fungus, alias, A toadstool upon a dung-hill [graphic].
MLA
Gillray, James, 1756-1815, printmaker. An excrescence, a fungus, alias, A toadstool upon a dung-hill [graphic].. 1791 December 20. https://collections.library.yale.edu/catalog/11811300.
APA, 6th edition
Gillray, James, 1756-1815, printmaker. (1791 December 20)[An excrescence, a fungus, alias, A toadstool upon a dung-hill [graphic].]. https://collections.library.yale.edu/catalog/11811300.