MLA

Peter Hemet, Operator for the Teeth, to His Majesty, and to His Royal Highness the Prince of Wales, Draws & Cleans Teeth ... [Graphic]. Peter Hemet, 0AD. https://collections.library.yale.edu/catalog/16830646.

APA, 6th edition

Peter Hemet, operator for the teeth, to His Majesty, and to His Royal Highness the Prince of Wales, draws & cleans teeth ... [graphic]. (0 C.E.). [Advertisements, Trade cards (advertising), Ephemera, Engravings England London 1757]. Peter Hemet. https://collections.library.yale.edu/catalog/16830646.