Cite

Their Royal Highnessess [sic] the Prince and Princess of Wales [graphic]

MLA

Sloane, Michael, active 1796-1802, printmaker. Their Royal Highnessess [sic] the Prince and Princess of Wales [graphic]. [12 April 1797]. https://collections.library.yale.edu/catalog/33191945.

APA, 6th edition

Sloane, Michael, active 1796-1802, printmaker. ([12 April 1797])[Their Royal Highnessess [sic] the Prince and Princess of Wales [graphic]]. https://collections.library.yale.edu/catalog/33191945.