MLA

Seymour, Robert, 1798-1836, printmaker. "I'll swear 'tis a pretty boy. O my troth, I look'd upon him o' Wednesday half an hour together, he has such a confirmed countenance " Coriolanus, Act 1, Sc. 2. [graphic]. [1841]. https://collections.library.yale.edu/catalog/17338281.

APA, 6th edition

Seymour, Robert, 1798-1836, printmaker. ([1841])["I'll swear 'tis a pretty boy. O my troth, I look'd upon him o' Wednesday half an hour together, he has such a confirmed countenance " Coriolanus, Act 1, Sc. 2. [graphic]]. https://collections.library.yale.edu/catalog/17338281.