Cite

Hell broke loose, Billy & his gang working the swine [graphic]

MLA

O'Keefe, W., fl. 1794-1805, artist. Hell broke loose, Billy & his gang working the swine [graphic]. [ca. 1795?]. https://collections.library.yale.edu/catalog/17288816.

APA, 6th edition

O'Keefe, W., fl. 1794-1805, artist. ([ca. 1795?])[Hell broke loose, Billy & his gang working the swine [graphic]]. https://collections.library.yale.edu/catalog/17288816.