MLA

The Whitworth Doctor Doing Business Expeditiously Recommended to the Phlebotomists of the London Hospitals. [Graphic]. Pubd. Feby. 20, 1791, by Wm. Holland, No. 50 Oxford Street, 0AD. https://collections.library.yale.edu/catalog/10732532.

APA, 6th edition

The Whitworth doctor doing business expeditiously recommended to the phlebotomists of the London hospitals. [graphic]. (0 C.E.). [Caricatures and cartoons, Satires (Visual works) England 1791, Etchings England London 1791]. Pubd. Feby. 20, 1791, by Wm. Holland, No. 50 Oxford Street. https://collections.library.yale.edu/catalog/10732532.