Cite

Sure such a pair were never seen so justly form'd to meet by nature!!! [art original]

MLA

Cruikshank, George, 1792-1878, artist. Sure such a pair were never seen so justly form'd to meet by nature!!! [art original]. 1818.. https://collections.library.yale.edu/catalog/10967995.

APA, 6th edition

Cruikshank, George, 1792-1878, artist. (1818.)[Sure such a pair were never seen so justly form'd to meet by nature!!! [art original]]. https://collections.library.yale.edu/catalog/10967995.