MLA

Miss Sp-Ks Admiral Sternpost. [Graphic]. Published as the act directs by T. Walker, No. 79 Dame Street, 1778. https://collections.library.yale.edu/catalog/10723168.

APA, 6th edition

Miss Sp-ks Admiral Sternpost. [graphic]. (1778). [Portrait prints, Periodical illustrations, Stipple engravings Ireland Dublin 1778, Engravings Ireland Dublin 1778]. Published as the act directs by T. Walker, No. 79 Dame Street. https://collections.library.yale.edu/catalog/10723168.