MLA

The Nonpareil of Portsoken The Premier Cit. [Graphic]. Published by A. Hamilton Junr. Fleet Street, 1AD. https://collections.library.yale.edu/catalog/10731268.

APA, 6th edition

The Nonpareil of Portsoken The premier cit. [graphic]. (1 C.E.). [Caricatures and cartoons, Portrait prints, Periodical illustrations, Stipple engravings England London 1790, Engravings England London 1790]. Published by A. Hamilton Junr. Fleet Street. https://collections.library.yale.edu/catalog/10731268.