Cite

Billy caught napping [graphic]

MLA

Dighton, Robert, 1752-1814, printmaker. Billy caught napping [graphic]. April 24th, 1797.. https://collections.library.yale.edu/catalog/11106104.

APA, 6th edition

Dighton, Robert, 1752-1814, printmaker. (April 24th, 1797.)[Billy caught napping [graphic]]. https://collections.library.yale.edu/catalog/11106104.