Cite

Sailors conversing on horseback [graphic]

MLA

Roberts, Piercy, active 1791-1805, printmaker. Sailors conversing on horseback [graphic]. [ca. 1803]. https://collections.library.yale.edu/catalog/33230769.

APA, 6th edition

Roberts, Piercy, active 1791-1805, printmaker. ([ca. 1803])[Sailors conversing on horseback [graphic]]. https://collections.library.yale.edu/catalog/33230769.