MLA

Heath, William, 1795-1840, printmaker. What's the reason the letter U can never go out to dinner? because it always comes after T!! / [graphic]. [19 March 1824]. https://collections.library.yale.edu/catalog/10970076.

APA, 6th edition

Heath, William, 1795-1840, printmaker. ([19 March 1824])[What's the reason the letter U can never go out to dinner? because it always comes after T!! / [graphic]]. https://collections.library.yale.edu/catalog/10970076.