Cite

Charlotte, Queen of Great Britain &c, &c. [graphic].

MLA

Charlotte, Queen of Great Britain &c, &c. [Graphic]. Printed for John Bowles & Son at the Black Horse in Cornhill, 0AD. https://collections.library.yale.edu/catalog/16194665.

APA, 6th edition

Charlotte, Queen of Great Britain &c, &c. [graphic]. (0 C.E.). [Portrait prints, Mezzotints England London 1760]. Printed for John Bowles & Son at the Black Horse in Cornhill. https://collections.library.yale.edu/catalog/16194665.