MLA

Heath, William, 1795-1840, printmaker. Now that I have illustrated my three pints, I shall proceed to draw some more ale!! [graphic]. [12 May 1823]. https://collections.library.yale.edu/catalog/33097846.

APA, 6th edition

Heath, William, 1795-1840, printmaker. ([12 May 1823])[Now that I have illustrated my three pints, I shall proceed to draw some more ale!! [graphic]]. https://collections.library.yale.edu/catalog/33097846.