MLA

Heath, William, 1790-184-, engraver. The secrets of Trop peau disclosed, or, The imbecille alliance of tyranny to crush the universal spirit of liberty defeated [graphic].. [30 January 1821]. https://collections.library.yale.edu/catalog/11020741.

APA, 6th edition

Heath, William, 1790-184-, engraver. ([30 January 1821])[The secrets of Trop peau disclosed, or, The imbecille alliance of tyranny to crush the universal spirit of liberty defeated [graphic].]. https://collections.library.yale.edu/catalog/11020741.