MLA

Miss O'Br-n The Hibernian Orator. [Graphic]. Publish'd by A. Hamilton Junr. Fleet Street, 0AD. https://collections.library.yale.edu/catalog/10724668.

APA, 6th edition

Miss O'Br-n The Hibernian orator. [graphic]. (0 C.E.). [Portrait prints, Periodical illustrations, Stipple engravings England London 1782, Engravings England London 1782]. Publish'd by A. Hamilton Junr. Fleet Street. https://collections.library.yale.edu/catalog/10724668.