MLA

Elmes, William, active 1797-1820, printmaker. Inhuman & barbarous lingering torture, inflicted on an European, in Barbary [graphic].. Dec. 21, 1808.. https://collections.library.yale.edu/catalog/16731099.

APA, 6th edition

Elmes, William, active 1797-1820, printmaker. (Dec. 21, 1808.)[Inhuman & barbarous lingering torture, inflicted on an European, in Barbary [graphic].]. https://collections.library.yale.edu/catalog/16731099.